diff --git a/demo/pages/module/index.js b/demo/pages/module/index.js
index c92697a..ea9d9b2 100644
--- a/demo/pages/module/index.js
+++ b/demo/pages/module/index.js
@@ -6,40 +6,40 @@ Page({
   storeConfig: {
     travelLimit: 5,
     defineReducer (store) {
-      store.add('one', {
-        partialState: {
-          name: 'chen',
-        },
-        setter: (state, payload) => ({ name: payload })
-      })
-      store.add('two', {
-        namespace: 'a',
-        partialState: {
-          age: 0,
-        },
-        setter: (state, payload) => ({ age: payload })
-      })
-      store.add('three', {
-        namespace: 'a.b',
-        partialState: {
-          sex: 'man',
-        },
-        setter: (state, payload) => ({ sex: payload })
-      })
-  
-      // store.add('action', {
+      // store.add('one', {
       //   partialState: {
-      //     a: createModule({}),
-      //   }
+      //     name: 'chen',
+      //   },
+      //   setter: (state, payload) => ({ name: payload })
       // })
       // store.add('two', {
-      //   namespace: 'b',
-      //   partialState: {},
+      //   namespace: 'a',
+      //   partialState: {
+      //     age: 0,
+      //   },
+      //   setter: (state, payload) => ({ age: payload })
       // })
       // store.add('three', {
-      //   namespace: 'a.a',
-      //   partialState: { a: 1 },
+      //   namespace: 'a.b',
+      //   partialState: {
+      //     sex: 'man',
+      //   },
+      //   setter: (state, payload) => ({ sex: payload })
+      // })
+  
+      store.add('action', {
+        partialState: {
+          a: {},
+        }
+      })
+      // store.add('two', {
+      //   namespace: 'b',
+      //   partialState: {},
       // })
+      store.add('three', {
+        namespace: 'a.b',
+        partialState: { a: 1 },
+      })
       // store.add('four', {
       //   namespace: 'a.a',
       //   partialState: { b: 2 },
@@ -114,14 +114,14 @@ Page({
     // useState: () => (['taoo.tao', {
     //   index: state => state.index,
     // }]),
-    travelLimit: 5,
-    useState () {
-      return ['a.b', {
-        sex: s => s.sex,
-        name: (s, r) => r.name,
-        age: (s, r) => r.a.age,
-      }]
-    },
+    // travelLimit: 5,
+    // useState () {
+    //   return ['a.b', {
+    //     sex: s => s.sex,
+    //     name: (s, r) => r.name,
+    //     age: (s, r) => r.a.age,
+    //   }]
+    // },
   },
 
   check (sex, name, age) {
diff --git a/demo/store/mpstore.esm.js b/demo/store/mpstore.esm.js
index aea84aa..2c3e95b 100644
--- a/demo/store/mpstore.esm.js
+++ b/demo/store/mpstore.esm.js
@@ -307,10 +307,6 @@ function createModuleByNamespace(namespace, partialModule, rootModule, stringify
     var key = segments[i];
     var isLastIndex = i === len - 1;
 
-    if (i > 0) {
-      assert(isModule(parentModule), 'the child modules must be in the parent module.\n\n' + "  the parent module namespace is [".concat(segments[i - 1], "]\n\n") + "  the child module namespace is [".concat(key, "]").concat(remaingMsg));
-    }
-
     if (key in parentModule) {
       assert(isModule(parentModule[key]), 'you can\'t create child moudle, ' + "because namespace [".concat(key, "] already exists in [").concat(segments[i - 1] || 'root', "] module, ") + "but [".concat(key, "] not a module.").concat(remaingMsg));
       childModule = isLastIndex ? mergeModule(parentModule[key], partialModule, key, createMsg) : Object.assign({}, parentModule[key]);
@@ -819,7 +815,7 @@ function () {
     this.depComponents = [];
     this.GLOBALWORD = 'global';
     this.isDispatching = false;
-    this.version = '0.1.0';
+    this.version = '0.1.1';
     this.state = Object.freeze(createModule({}));
     this.middleware = new Middleware(this);
   }
@@ -1072,7 +1068,7 @@ function () {
   return Store;
 }();
 
-var version = '0.1.0';
+var version = '0.1.1';
 var nativePage = Page;
 var nativeComponent = Component;
 
diff --git a/dist/mpstore.common.js b/dist/mpstore.common.js
index a104873..c854f6c 100644
--- a/dist/mpstore.common.js
+++ b/dist/mpstore.common.js
@@ -311,10 +311,6 @@ function createModuleByNamespace(namespace, partialModule, rootModule, stringify
     var key = segments[i];
     var isLastIndex = i === len - 1;
 
-    if (i > 0) {
-      assert(isModule(parentModule), 'the child modules must be in the parent module.\n\n' + "  the parent module namespace is [".concat(segments[i - 1], "]\n\n") + "  the child module namespace is [".concat(key, "]").concat(remaingMsg));
-    }
-
     if (key in parentModule) {
       assert(isModule(parentModule[key]), 'you can\'t create child moudle, ' + "because namespace [".concat(key, "] already exists in [").concat(segments[i - 1] || 'root', "] module, ") + "but [".concat(key, "] not a module.").concat(remaingMsg));
       childModule = isLastIndex ? mergeModule(parentModule[key], partialModule, key, createMsg) : Object.assign({}, parentModule[key]);
@@ -823,7 +819,7 @@ function () {
     this.depComponents = [];
     this.GLOBALWORD = 'global';
     this.isDispatching = false;
-    this.version = '0.1.0';
+    this.version = '0.1.1';
     this.state = Object.freeze(createModule({}));
     this.middleware = new Middleware(this);
   }
@@ -1076,7 +1072,7 @@ function () {
   return Store;
 }();
 
-var version = '0.1.0';
+var version = '0.1.1';
 var nativePage = Page;
 var nativeComponent = Component;
 
diff --git a/dist/mpstore.es6m.js b/dist/mpstore.es6m.js
index fd069c6..6ec5385 100644
--- a/dist/mpstore.es6m.js
+++ b/dist/mpstore.es6m.js
@@ -211,14 +211,6 @@ function createModuleByNamespace (namespace, partialModule, rootModule, stringif
     let childModule;
     const key = segments[i];
     const isLastIndex = i === len - 1;
-    if (i > 0) {
-      assert(
-        isModule(parentModule),
-        'the child modules must be in the parent module.\n\n' +
-          `  the parent module namespace is [${segments[i - 1]}]\n\n` +
-            `  the child module namespace is [${key}]${remaingMsg}`,
-      );
-    }
     if (key in parentModule) {
       assert(
         isModule(parentModule[key]),
@@ -659,7 +651,7 @@ class Store {
     this.depComponents = [];
     this.GLOBALWORD = 'global';
     this.isDispatching = false;
-    this.version = '0.1.0';
+    this.version = '0.1.1';
     this.state = Object.freeze(createModule({}));
     this.middleware = new Middleware(this);
   }
@@ -893,7 +885,7 @@ class Store {
   }
 }
 
-const version = '0.1.0';
+const version = '0.1.1';
 const nativePage = Page;
 const nativeComponent = Component;
 function expandConfig (config, expandMethods, isPage) {
diff --git a/dist/mpstore.esm.js b/dist/mpstore.esm.js
index aea84aa..2c3e95b 100644
--- a/dist/mpstore.esm.js
+++ b/dist/mpstore.esm.js
@@ -307,10 +307,6 @@ function createModuleByNamespace(namespace, partialModule, rootModule, stringify
     var key = segments[i];
     var isLastIndex = i === len - 1;
 
-    if (i > 0) {
-      assert(isModule(parentModule), 'the child modules must be in the parent module.\n\n' + "  the parent module namespace is [".concat(segments[i - 1], "]\n\n") + "  the child module namespace is [".concat(key, "]").concat(remaingMsg));
-    }
-
     if (key in parentModule) {
       assert(isModule(parentModule[key]), 'you can\'t create child moudle, ' + "because namespace [".concat(key, "] already exists in [").concat(segments[i - 1] || 'root', "] module, ") + "but [".concat(key, "] not a module.").concat(remaingMsg));
       childModule = isLastIndex ? mergeModule(parentModule[key], partialModule, key, createMsg) : Object.assign({}, parentModule[key]);
@@ -819,7 +815,7 @@ function () {
     this.depComponents = [];
     this.GLOBALWORD = 'global';
     this.isDispatching = false;
-    this.version = '0.1.0';
+    this.version = '0.1.1';
     this.state = Object.freeze(createModule({}));
     this.middleware = new Middleware(this);
   }
@@ -1072,7 +1068,7 @@ function () {
   return Store;
 }();
 
-var version = '0.1.0';
+var version = '0.1.1';
 var nativePage = Page;
 var nativeComponent = Component;
 
diff --git a/dist/mpstore.min.js b/dist/mpstore.min.js
index d8ef788..df182af 100644
--- a/dist/mpstore.min.js
+++ b/dist/mpstore.min.js
@@ -1 +1 @@
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function _defineProperties(e,t){for(var n=0;n<t.length;n++){var a=t[n];a.enumerable=a.enumerable||!1,a.configurable=!0,"value"in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}}function _createClass(e,t,n){return t&&_defineProperties(e.prototype,t),n&&_defineProperties(e,n),e}function _defineProperty(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function _slicedToArray(e,t){return _arrayWithHoles(e)||_iterableToArrayLimit(e,t)||_nonIterableRest()}function _arrayWithHoles(e){if(Array.isArray(e))return e}function _iterableToArrayLimit(e,t){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e)){var n=[],a=!0,r=!1,o=void 0;try{for(var i,s=e[Symbol.iterator]();!(a=(i=s.next()).done)&&(n.push(i.value),!t||n.length!==t);a=!0);}catch(e){r=!0,o=e}finally{try{a||null==s.return||s.return()}finally{if(r)throw o}}return n}}function _nonIterableRest(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}function warning(e,t){if(e="\n\n[MpStore warning]: ".concat(e,"\n\n"),!t)throw new Error(e);console.warn(e)}function assert(e,t){e||warning(t)}function isPrimitive(e){return"string"==typeof e||"number"==typeof e||"symbol"===_typeof(e)||"boolean"==typeof e}function deepFreeze(e){for(var t=Object.getOwnPropertyNames(e),n=t.length;~n--;){var a=e[t[n]];"object"===_typeof(a)&&null!==a&&deepFreeze(a)}return Object.freeze(e)}function mergeState(e,t){return deepFreeze(Object.assign({},e,t))}function mixinMethods(e,t){for(var n in t)n in e||(e[n]=t[n])}function remove(e,t){var n=e.findIndex((function(e){return e.component===t}));n>-1&&e.splice(n,1)}function callHook(e,t,n){if(e&&"function"==typeof e[t])return e[t].apply(e,n)}function isEmptyObject(e){for(var t in e)return!1;return!0}function mapObject(e,t){var n={};for(var a in e)e.hasOwnProperty(a)&&(n[a]=t(e[a]));return n}function createWraper(e,t,n){return function(){for(var a,r=arguments.length,o=new Array(r),i=0;i<r;i++)o[i]=arguments[i];return"function"==typeof t&&t.apply(this,o),"function"==typeof e&&(a=e.apply(this,o)),"function"==typeof n&&n.apply(this,o),a}}function isPlainObject(e){if("object"!==_typeof(e)||null===e)return!1;var t=Object.getPrototypeOf(e);if(null===t)return!0;for(var n=t;null!==Object.getPrototypeOf(n);)n=Object.getPrototypeOf(n);return t===n}function clone(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:new WeakMap;if(null==e||isPrimitive(e)||"function"==typeof e||e instanceof Date)return e;if(t.has(e))return t.get(e);var n="function"!=typeof e.constructor?Object.create(null):new e.constructor;for(var a in t.set(e,n),e)n[a]=clone(e[a],t);return n}function parsePath(e){var t=e.split(".");return function(e){for(var n=0,a=t.length;n<a;n++){if(!e)return;e=e[t[n]]}return e}}function mixin(e){var t=Object.create(null);if("function"==typeof e){e((function(e,n){assert("string"==typeof e,"The mixed method name must a string."),assert("function"==typeof n,"The mixed method is not a function."),assert(!(e in t),'The "'.concat(e,'" is exist,')),t[e]=n}))}return t}Object.defineProperty(exports,"__esModule",{value:!0});var MODULE_FLAG=Symbol("module");function isModule(e){return isPlainObject(e)&&!0===e[MODULE_FLAG]}function getModule(e,t){var n=t?parsePath(t)(e):e;return isModule(n)?n:null}function mergeModule(e,t,n,a){for(var r=Object.keys(t),o=r.length;~--o;){var i=r[o];if("function"==typeof a)assert(!(i in e),a(i,n));else{var s=e[i],c=t[i],u=isModule(s),l=isModule(c);assert(!(u&&!l),"The namespace [".concat(i,"] is a module that you can change to other value, ")+"You can use `createModule` method to recreate a module.\n\n  --- from setter function."),assert(!(!u&&l),"The namespace [".concat(i,"] is not a module, you can't create it as a module, ")+"you must define the module in `reducer`.\n\n  --- from setter function."),u&&l&&(t[i]=mergeModule(s,c))}}return createModule(Object.assign({},e,t))}function addModuleFlag(e){return e[MODULE_FLAG]=!0,e}function createModule(e){return assert(isPlainObject(e),"The base module object must be an plain object"),isModule(e)?e:(addModuleFlag(e),e)}function createModuleByNamespace(e,t,n,a,r){if(!e)return mergeModule(n,t);for(var o={},i=n,s=o,c=e.split("."),u="\n\n  --- from [".concat(a,"] action"),l=0,f=c.length;l<f;l++){var h=void 0,d=c[l],p=l===f-1;l>0&&assert(isModule(i),"the child modules must be in the parent module.\n\n"+"  the parent module namespace is [".concat(c[l-1],"]\n\n")+"  the child module namespace is [".concat(d,"]").concat(u)),d in i?(assert(isModule(i[d]),"you can't create child moudle, "+"because namespace [".concat(d,"] already exists in [").concat(c[l-1]||"root","] module, ")+"but [".concat(d,"] not a module.").concat(u)),h=p?mergeModule(i[d],t,d,r):Object.assign({},i[d])):h=p?createModule(t):addModuleFlag({}),o[d]=h,o=h,i=h}return s}var ADD=1,REMOVE=2,REPLACE=3;function Patch(e,t,n,a){this.type=e,this.path=t,this.value=n,this.leftValue=a}function diffValues(e,t,n,a){"function"==typeof e||null===e?a.push(new Patch(REPLACE,n,t,e)):Array.isArray(e)?Array.isArray(t)?walkArray(e,t,n,a):a.push(new Patch(REPLACE,n,t,e)):"object"===_typeof(e)?null===t||"object"!==_typeof(t)||Array.isArray(t)?a.push(new Patch(REPLACE,n,t,e)):e instanceof Date||t instanceof Date?a.push(new Patch(REPLACE,n,t,e)):walkObject(e,t,n,a):a.push(new Patch(REPLACE,n,t,e))}function walkArray(e,t,n,a){if(e.length<=t.length){for(var r=e.length;~--r;)if(e[r]!==t[r]){var o="".concat(n,"[").concat(r,"]");diffValues(e[r],t[r],o,a)}if(t.length>e.length)for(r=t.length;--r>=e.length;){var i="".concat(n,"[").concat(r,"]");a.push(new Patch(ADD,i,t[r],e[r]))}}else a.push(new Patch(REPLACE,n,t,e))}function walkObject(e,t,n,a){for(var r in e){var o="".concat(n,".").concat(r);r in t?e[r]!==t[r]&&diffValues(e[r],t[r],o,a):a.push(new Patch(REMOVE,o,null,e[r]))}for(var i in t)if(!(i in e)){var s="".concat(n,".").concat(i);a.push(new Patch(ADD,s,t[i],null))}}function diff(e,t,n){var a=[];return walkObject(e,t,n,a),a}var REG=/[^\[\].]+(?=[\[\].])/g;function separatePath(e,t){var n=t.match(REG);if(n&&n.shift()&&n.length>0){for(var a=-1,r=null,o=e,i=null;a++<n.length-2;)i=o,o=o[r=n[a]];return[o,r,i,n[n.length-1]]}}function restore(e,t){for(var n=t.length,a=new Map;~--n;){var r=t[n],o=r.type,i=r.path,s=r.leftValue,c=separatePath(e,i+".");if(c){var u=_slicedToArray(c,4),l=u[0],f=u[1],h=u[2],d=u[3];switch(o){case REMOVE:case REPLACE:l[d]=s;break;case ADD:Array.isArray(l)&&l===h[f]&&a.set(l,{key:f,prevTarget:h}),delete l[d]}}}return a.forEach((function(e,t){var n=e.key,a=e.prevTarget,r=new t.constructor;t.forEach((function(e){return r.push(e)})),a[n]=r})),e}function applyPatchs(e,t,n){for(var a={},r=0,o=t.length;r<o;r++){var i=t[r],s=i.value;a[i.path]=s}e.setData(a,n)}function updateComponents(e,t){var n=0,a=e.hooks,r=e.GLOBALWORD,o=e.depComponents,i=o.length;if(0!==i)for(var s=function(){++n===i&&"function"==typeof t&&t()},c=0;c<i;c++){var u=o[c],l=u.isPage,f=u.component,h=u.didUpdate,d=u.willUpdate,p=u.createState;if(f.data[r]){var y=p();if("function"==typeof d&&!1===d.call(e,f,y)){s();continue}var m=diff(f.data[r],y,r);if(m.length>0){if(!1===callHook(a,"willUpdate",[f,y,m,l])){s();continue}applyPatchs(f,m,s),"function"==typeof h&&h.call(e,f,y,m),callHook(a,"didUpdate",[f,y,l]),f.timeTravel&&f.timeTravel.push(m)}else s()}else s()}else"function"==typeof t&&t()}var TimeTravel=function(){function e(t,n,a){_classCallCheck(this,e),this.history=[],this.limit=a,this.component=t,this.GLOBALWORD=n,this.length=this.history.length,this.current=this.history.length,this.finallyState=t.data[n]}return _createClass(e,[{key:"push",value:function(e){var t=this.limit,n=this.history,a=this.GLOBALWORD,r=this.history.length,o=this.component.data;if(t>0){var i=r-t;i>=0&&this.history.splice(0,i+1),this.history.push(e),this.length=n.length,this.current=n.length,this.finallyState=clone(o[a])}}},{key:"go",value:function(e){var t=this.current,n=this.history,a=this.component,r=this.GLOBALWORD,o=this.finallyState;if(assert(r in a.data,"You can't use [timeTravel] because it only works for [global state]"),this.limit>0&&0!==e){var i=e+t,s=Math.abs(e);if(i<0||i>n.length)return void warning("Index [".concat(i,"] is not within the allowed range."),!0);for(var c=0,u=clone(a.data[r]);c++<s;){var l=t+Math.sign(e)*c;if(l<n.length)u=restore(u,clone(n[l]));else u=o}var f=diff(a.data[r],u,r);f.length>0&&applyPatchs(a,f),this.current+=e}}},{key:"forward",value:function(){this.go(1)}},{key:"back",value:function(){this.go(-1)}},{key:"toStart",value:function(){this.go(-this.current)}},{key:"toEnd",value:function(){this.go(this.history.length-this.current)}}]),e}(),COMMONACTION=function(){};function match(e,t){return e.action===COMMONACTION||t===e.action}function handleLayer(e,t,n,a,r,o){try{t.call(n,a,r,e),o()}catch(t){var i=n.hooks;o(),i&&"function"==typeof i.middlewareError?i.middlewareError(e,a,t):warning("".concat(t,"\n\n   --- from middleware [").concat(e.toString(),"] action."))}}var Middleware=function(){function e(t){_classCallCheck(this,e),this.stack=[],this.store=t,this.isProcessing=!1}return _createClass(e,[{key:"use",value:function(e,t){assert(!this.isProcessing,"can't allow add new middleware in the middleware processing."),this.stack.push({fn:t,action:e})}},{key:"remove",value:function(e,t){var n=this.stack.findIndex((function(n){return n.fn===t&&n.action===e}));n>-1&&this.stack.splice(n,1)}},{key:"process",value:function(e,t,n){var a=this;this.isProcessing=!0;var r=function(){a.isProcessing=!1};if(this.stack.length>0){var o=0;!function t(i){var s=a.stack[o];for(o++;s&&!match(s,e);)s=a.stack[o++];s?handleLayer(e,s.fn,a.store,i,t,r):n(i,r)}(t)}else n(t,r)}}]),e}(),storeId=0;function assertReducer(e,t){var n=t.setter,a=t.partialState,r=e.toString();return assert("partialState"in t,"You must defined [partialState]."+"\n\n --- from [".concat(r,"] action.")),assert(isPlainObject(a),"The [partialState] must be an object."+"\n\n --- from [".concat(r,"] action.")),"function"!=typeof n&&(t.setter=function(){warning("Can't changed [".concat(r,"] action value. Have you defined a setter?")+"\n\n --- from [".concat(r,"] action."))}),t}function filterReducer(e,t,n){var a=t.toString(),r=n.namespace,o=n.partialState;if("namespace"in n)assert("string"==typeof r,"The module namespace must be a string."+"\n\n --- from [".concat(a,"] action.")),getModule(e,r)&&isEmptyObject(o)||(n.partialState=createModuleByNamespace(r,o,e,a,(function(e,t){return"The [".concat(e,"] already exists in [").concat(t,"] module, ")+"Please don't repeat defined. \n\n --- from [".concat(a,"] action.")})));else for(var i in o)assert(!e.hasOwnProperty(i),"The [".concat(i,"] already exists in global state, ")+"Please don't repeat defined. \n\n --- from [".concat(a,"] action."));return n}var Store=function(){function e(t){_classCallCheck(this,e),this.hooks=t,this.reducers=[],this.id=++storeId,this.depComponents=[],this.GLOBALWORD="global",this.isDispatching=!1,this.version="0.1.0",this.state=Object.freeze(createModule({})),this.middleware=new Middleware(this)}return _createClass(e,[{key:"add",value:function(e,t){var n=_typeof(e);assert("string"===n||"symbol"===n,"The action must be a Symbol or String, but now is [".concat(n,"].")),assert(!this.reducers.find((function(t){return t.action===e})),"Can't repeat defined [".concat(e.toString(),"] action.")),assertReducer(e,t),filterReducer(this.state,e,t),t.action=e,this.reducers.push(t);var a=t.partialState;isEmptyObject(a)||(this.state=mergeState(this.state,a))}},{key:"dispatch",value:function(e,t,n){var a=this,r=this.reducers,o=this.isDispatching,i=e.toString();assert(!o,'It is not allowed to call "dispatch" during dispatch execution.'+"\n\n   --- from [".concat(i,"] action."));var s=r.find((function(t){return t.action===e}));assert(s,"The [".concat(i,"] action does not exist. ")+"Maybe you have not defined."),this.middleware.process(e,t,(function(e,t){a.isDispatching=!0;try{var r,o=s.namespace,c="string"==typeof o;if(c){var u=a.getModule(o,"\n\n --- from [".concat(i,"] action."));r=s.setter(u,e,a.state)}else r=s.setter(a.state,e);assert(isPlainObject(r),"setter function should be return a plain object."),isEmptyObject(r)||(c?(r=createModuleByNamespace(o,r,a.state,i),a.state=mergeState(a.state,r)):a.state=deepFreeze(mergeModule(a.state,r)))}finally{a.isDispatching=!1,t()}updateComponents(a,n)}))}},{key:"use",value:function(e,t){var n=this;return"function"==typeof e&&e!==COMMONACTION&&(t=e,e=COMMONACTION),this.middleware.use(e,t),function(){return n.middleware.remove(e,t)}}},{key:"setNamespace",value:function(e){assert(e&&"string"==typeof e,"The [namespace] must be a string"),this.GLOBALWORD=e}},{key:"getModule",value:function(e,t){if(assert("string"==typeof e,"the namespace mast be a string"),!e)return this.state;var n=getModule(this.state,e);return t&&null===n&&warning("The [".concat(e,"] module is not exist.").concat(t||"")),n}},{key:"addModule",value:function(e,t){var n=this;if(assert("string"==typeof e,"the namespace mast be a string"),!isEmptyObject(t)){for(var a=0,r=Object.keys(t),o=Object.getOwnPropertySymbols(t),i=function(a){var r=t[a];r.namespace=e,n.add(a,r)};a<r.length;a++)i(r[a]);for(a=0;a<o.length;a++)i(o[a])}}},{key:"rewirteConfigAndAddDep",value:function(e,t){var n=this,a=null,r=this,o=this.GLOBALWORD,i=e.data,s=e.storeConfig,c=void 0===s?{}:s,u=c.useState,l=c.didUpdate,f=c.willUpdate,h=c.defineReducer,d=c.travelLimit,p=void 0===d?0:d;if(assert("number"==typeof p,"[travelLimit] must be a number, but now is [".concat(_typeof(p),"].")),delete e.storeConfig,"function"==typeof h&&h.call(r,r),"function"==typeof u){var y=null,m=null,v=u.call(r,r);Array.isArray(v)?(y=v[0],m=v[1]):m=v,assert(isPlainObject(m),"[useState] must return a plain object, "+"but now is return a [".concat(_typeof(m),"]")),a=function(){return clone(mapObject(m,(function(e){return null===y?e(r.state):e(n.getModule(y,"\n\n   --- from [".concat(y,"] of useState.")),r.state)})))}}if(null!==a){var g=a();isPlainObject(g)&&(i?i[o]=g:e.data=_defineProperty({},o,g))}var b=function(e){if(!1!==callHook(n.hooks,"addDep",[e,t])&&null!==a&&e.data&&isPlainObject(e.data[o])){e.timeTravel=new TimeTravel(e,o,p),n.depComponents.push({isPage:t,component:e,didUpdate:l,willUpdate:f,createState:a});var r=diff(e.data[o],a(),o);r.length>0&&applyPatchs(e,r,o)}};if(t)e.onLoad=createWraper(e.onLoad,(function(){b(this),this.store=r})),e.onUnload=createWraper(e.onUnload,null,(function(){remove(r.depComponents,this)}));else{e.lifetimes=e.lifetimes||{};var O=function(t){return e[t]||e.lifetimes[t]},w=function(t,n){return e[t]=e.lifetimes[t]=n};w("attached",createWraper(O("attached"),(function(){b(this),this.store=r}))),w("detached",createWraper(O("detached"),null,(function(){remove(r.depComponents,this)})))}}}]),e}(),version="0.1.0",nativePage=Page,nativeComponent=Component;function expandConfig(e,t,n){isEmptyObject(t)||(n?mixinMethods(e,t):(e.methods=e.methods||{},mixinMethods(e.methods,t)))}function index(e,t){var n=new Store(t),a=mixin(e);return Page=createWraper(nativePage,(function(e){callHook(t,"createBefore",[e,!0]),expandConfig(e,a,!0),n.rewirteConfigAndAddDep(e,!0)})),Component=createWraper(nativeComponent,(function(e){callHook(t,"createBefore",[e,!1]),expandConfig(e,a,!1),n.rewirteConfigAndAddDep(e,!1)})),n}exports.clone=clone,exports.createModule=createModule,exports.default=index,exports.diff=diff,exports.isModule=isModule,exports.restore=restore,exports.version=version;
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function _defineProperties(e,t){for(var n=0;n<t.length;n++){var a=t[n];a.enumerable=a.enumerable||!1,a.configurable=!0,"value"in a&&(a.writable=!0),Object.defineProperty(e,a.key,a)}}function _createClass(e,t,n){return t&&_defineProperties(e.prototype,t),n&&_defineProperties(e,n),e}function _defineProperty(e,t,n){return t in e?Object.defineProperty(e,t,{value:n,enumerable:!0,configurable:!0,writable:!0}):e[t]=n,e}function _slicedToArray(e,t){return _arrayWithHoles(e)||_iterableToArrayLimit(e,t)||_nonIterableRest()}function _arrayWithHoles(e){if(Array.isArray(e))return e}function _iterableToArrayLimit(e,t){if(Symbol.iterator in Object(e)||"[object Arguments]"===Object.prototype.toString.call(e)){var n=[],a=!0,r=!1,o=void 0;try{for(var i,s=e[Symbol.iterator]();!(a=(i=s.next()).done)&&(n.push(i.value),!t||n.length!==t);a=!0);}catch(e){r=!0,o=e}finally{try{a||null==s.return||s.return()}finally{if(r)throw o}}return n}}function _nonIterableRest(){throw new TypeError("Invalid attempt to destructure non-iterable instance")}function warning(e,t){if(e="\n\n[MpStore warning]: ".concat(e,"\n\n"),!t)throw new Error(e);console.warn(e)}function assert(e,t){e||warning(t)}function isPrimitive(e){return"string"==typeof e||"number"==typeof e||"symbol"===_typeof(e)||"boolean"==typeof e}function deepFreeze(e){for(var t=Object.getOwnPropertyNames(e),n=t.length;~n--;){var a=e[t[n]];"object"===_typeof(a)&&null!==a&&deepFreeze(a)}return Object.freeze(e)}function mergeState(e,t){return deepFreeze(Object.assign({},e,t))}function mixinMethods(e,t){for(var n in t)n in e||(e[n]=t[n])}function remove(e,t){var n=e.findIndex((function(e){return e.component===t}));n>-1&&e.splice(n,1)}function callHook(e,t,n){if(e&&"function"==typeof e[t])return e[t].apply(e,n)}function isEmptyObject(e){for(var t in e)return!1;return!0}function mapObject(e,t){var n={};for(var a in e)e.hasOwnProperty(a)&&(n[a]=t(e[a]));return n}function createWraper(e,t,n){return function(){for(var a,r=arguments.length,o=new Array(r),i=0;i<r;i++)o[i]=arguments[i];return"function"==typeof t&&t.apply(this,o),"function"==typeof e&&(a=e.apply(this,o)),"function"==typeof n&&n.apply(this,o),a}}function isPlainObject(e){if("object"!==_typeof(e)||null===e)return!1;var t=Object.getPrototypeOf(e);if(null===t)return!0;for(var n=t;null!==Object.getPrototypeOf(n);)n=Object.getPrototypeOf(n);return t===n}function clone(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:new WeakMap;if(null==e||isPrimitive(e)||"function"==typeof e||e instanceof Date)return e;if(t.has(e))return t.get(e);var n="function"!=typeof e.constructor?Object.create(null):new e.constructor;for(var a in t.set(e,n),e)n[a]=clone(e[a],t);return n}function parsePath(e){var t=e.split(".");return function(e){for(var n=0,a=t.length;n<a;n++){if(!e)return;e=e[t[n]]}return e}}function mixin(e){var t=Object.create(null);if("function"==typeof e){e((function(e,n){assert("string"==typeof e,"The mixed method name must a string."),assert("function"==typeof n,"The mixed method is not a function."),assert(!(e in t),'The "'.concat(e,'" is exist,')),t[e]=n}))}return t}Object.defineProperty(exports,"__esModule",{value:!0});var MODULE_FLAG=Symbol("module");function isModule(e){return isPlainObject(e)&&!0===e[MODULE_FLAG]}function getModule(e,t){var n=t?parsePath(t)(e):e;return isModule(n)?n:null}function mergeModule(e,t,n,a){for(var r=Object.keys(t),o=r.length;~--o;){var i=r[o];if("function"==typeof a)assert(!(i in e),a(i,n));else{var s=e[i],c=t[i],u=isModule(s),l=isModule(c);assert(!(u&&!l),"The namespace [".concat(i,"] is a module that you can change to other value, ")+"You can use `createModule` method to recreate a module.\n\n  --- from setter function."),assert(!(!u&&l),"The namespace [".concat(i,"] is not a module, you can't create it as a module, ")+"you must define the module in `reducer`.\n\n  --- from setter function."),u&&l&&(t[i]=mergeModule(s,c))}}return createModule(Object.assign({},e,t))}function addModuleFlag(e){return e[MODULE_FLAG]=!0,e}function createModule(e){return assert(isPlainObject(e),"The base module object must be an plain object"),isModule(e)?e:(addModuleFlag(e),e)}function createModuleByNamespace(e,t,n,a,r){if(!e)return mergeModule(n,t);for(var o={},i=n,s=o,c=e.split("."),u="\n\n  --- from [".concat(a,"] action"),l=0,f=c.length;l<f;l++){var h=void 0,d=c[l],p=l===f-1;d in i?(assert(isModule(i[d]),"you can't create child moudle, "+"because namespace [".concat(d,"] already exists in [").concat(c[l-1]||"root","] module, ")+"but [".concat(d,"] not a module.").concat(u)),h=p?mergeModule(i[d],t,d,r):Object.assign({},i[d])):h=p?createModule(t):addModuleFlag({}),o[d]=h,o=h,i=h}return s}var ADD=1,REMOVE=2,REPLACE=3;function Patch(e,t,n,a){this.type=e,this.path=t,this.value=n,this.leftValue=a}function diffValues(e,t,n,a){"function"==typeof e||null===e?a.push(new Patch(REPLACE,n,t,e)):Array.isArray(e)?Array.isArray(t)?walkArray(e,t,n,a):a.push(new Patch(REPLACE,n,t,e)):"object"===_typeof(e)?null===t||"object"!==_typeof(t)||Array.isArray(t)?a.push(new Patch(REPLACE,n,t,e)):e instanceof Date||t instanceof Date?a.push(new Patch(REPLACE,n,t,e)):walkObject(e,t,n,a):a.push(new Patch(REPLACE,n,t,e))}function walkArray(e,t,n,a){if(e.length<=t.length){for(var r=e.length;~--r;)if(e[r]!==t[r]){var o="".concat(n,"[").concat(r,"]");diffValues(e[r],t[r],o,a)}if(t.length>e.length)for(r=t.length;--r>=e.length;){var i="".concat(n,"[").concat(r,"]");a.push(new Patch(ADD,i,t[r],e[r]))}}else a.push(new Patch(REPLACE,n,t,e))}function walkObject(e,t,n,a){for(var r in e){var o="".concat(n,".").concat(r);r in t?e[r]!==t[r]&&diffValues(e[r],t[r],o,a):a.push(new Patch(REMOVE,o,null,e[r]))}for(var i in t)if(!(i in e)){var s="".concat(n,".").concat(i);a.push(new Patch(ADD,s,t[i],null))}}function diff(e,t,n){var a=[];return walkObject(e,t,n,a),a}var REG=/[^\[\].]+(?=[\[\].])/g;function separatePath(e,t){var n=t.match(REG);if(n&&n.shift()&&n.length>0){for(var a=-1,r=null,o=e,i=null;a++<n.length-2;)i=o,o=o[r=n[a]];return[o,r,i,n[n.length-1]]}}function restore(e,t){for(var n=t.length,a=new Map;~--n;){var r=t[n],o=r.type,i=r.path,s=r.leftValue,c=separatePath(e,i+".");if(c){var u=_slicedToArray(c,4),l=u[0],f=u[1],h=u[2],d=u[3];switch(o){case REMOVE:case REPLACE:l[d]=s;break;case ADD:Array.isArray(l)&&l===h[f]&&a.set(l,{key:f,prevTarget:h}),delete l[d]}}}return a.forEach((function(e,t){var n=e.key,a=e.prevTarget,r=new t.constructor;t.forEach((function(e){return r.push(e)})),a[n]=r})),e}function applyPatchs(e,t,n){for(var a={},r=0,o=t.length;r<o;r++){var i=t[r],s=i.value;a[i.path]=s}e.setData(a,n)}function updateComponents(e,t){var n=0,a=e.hooks,r=e.GLOBALWORD,o=e.depComponents,i=o.length;if(0!==i)for(var s=function(){++n===i&&"function"==typeof t&&t()},c=0;c<i;c++){var u=o[c],l=u.isPage,f=u.component,h=u.didUpdate,d=u.willUpdate,p=u.createState;if(f.data[r]){var y=p();if("function"==typeof d&&!1===d.call(e,f,y)){s();continue}var m=diff(f.data[r],y,r);if(m.length>0){if(!1===callHook(a,"willUpdate",[f,y,m,l])){s();continue}applyPatchs(f,m,s),"function"==typeof h&&h.call(e,f,y,m),callHook(a,"didUpdate",[f,y,l]),f.timeTravel&&f.timeTravel.push(m)}else s()}else s()}else"function"==typeof t&&t()}var TimeTravel=function(){function e(t,n,a){_classCallCheck(this,e),this.history=[],this.limit=a,this.component=t,this.GLOBALWORD=n,this.length=this.history.length,this.current=this.history.length,this.finallyState=t.data[n]}return _createClass(e,[{key:"push",value:function(e){var t=this.limit,n=this.history,a=this.GLOBALWORD,r=this.history.length,o=this.component.data;if(t>0){var i=r-t;i>=0&&this.history.splice(0,i+1),this.history.push(e),this.length=n.length,this.current=n.length,this.finallyState=clone(o[a])}}},{key:"go",value:function(e){var t=this.current,n=this.history,a=this.component,r=this.GLOBALWORD,o=this.finallyState;if(assert(r in a.data,"You can't use [timeTravel] because it only works for [global state]"),this.limit>0&&0!==e){var i=e+t,s=Math.abs(e);if(i<0||i>n.length)return void warning("Index [".concat(i,"] is not within the allowed range."),!0);for(var c=0,u=clone(a.data[r]);c++<s;){var l=t+Math.sign(e)*c;if(l<n.length)u=restore(u,clone(n[l]));else u=o}var f=diff(a.data[r],u,r);f.length>0&&applyPatchs(a,f),this.current+=e}}},{key:"forward",value:function(){this.go(1)}},{key:"back",value:function(){this.go(-1)}},{key:"toStart",value:function(){this.go(-this.current)}},{key:"toEnd",value:function(){this.go(this.history.length-this.current)}}]),e}(),COMMONACTION=function(){};function match(e,t){return e.action===COMMONACTION||t===e.action}function handleLayer(e,t,n,a,r,o){try{t.call(n,a,r,e),o()}catch(t){var i=n.hooks;o(),i&&"function"==typeof i.middlewareError?i.middlewareError(e,a,t):warning("".concat(t,"\n\n   --- from middleware [").concat(e.toString(),"] action."))}}var Middleware=function(){function e(t){_classCallCheck(this,e),this.stack=[],this.store=t,this.isProcessing=!1}return _createClass(e,[{key:"use",value:function(e,t){assert(!this.isProcessing,"can't allow add new middleware in the middleware processing."),this.stack.push({fn:t,action:e})}},{key:"remove",value:function(e,t){var n=this.stack.findIndex((function(n){return n.fn===t&&n.action===e}));n>-1&&this.stack.splice(n,1)}},{key:"process",value:function(e,t,n){var a=this;this.isProcessing=!0;var r=function(){a.isProcessing=!1};if(this.stack.length>0){var o=0;!function t(i){var s=a.stack[o];for(o++;s&&!match(s,e);)s=a.stack[o++];s?handleLayer(e,s.fn,a.store,i,t,r):n(i,r)}(t)}else n(t,r)}}]),e}(),storeId=0;function assertReducer(e,t){var n=t.setter,a=t.partialState,r=e.toString();return assert("partialState"in t,"You must defined [partialState]."+"\n\n --- from [".concat(r,"] action.")),assert(isPlainObject(a),"The [partialState] must be an object."+"\n\n --- from [".concat(r,"] action.")),"function"!=typeof n&&(t.setter=function(){warning("Can't changed [".concat(r,"] action value. Have you defined a setter?")+"\n\n --- from [".concat(r,"] action."))}),t}function filterReducer(e,t,n){var a=t.toString(),r=n.namespace,o=n.partialState;if("namespace"in n)assert("string"==typeof r,"The module namespace must be a string."+"\n\n --- from [".concat(a,"] action.")),getModule(e,r)&&isEmptyObject(o)||(n.partialState=createModuleByNamespace(r,o,e,a,(function(e,t){return"The [".concat(e,"] already exists in [").concat(t,"] module, ")+"Please don't repeat defined. \n\n --- from [".concat(a,"] action.")})));else for(var i in o)assert(!e.hasOwnProperty(i),"The [".concat(i,"] already exists in global state, ")+"Please don't repeat defined. \n\n --- from [".concat(a,"] action."));return n}var Store=function(){function e(t){_classCallCheck(this,e),this.hooks=t,this.reducers=[],this.id=++storeId,this.depComponents=[],this.GLOBALWORD="global",this.isDispatching=!1,this.version="0.1.1",this.state=Object.freeze(createModule({})),this.middleware=new Middleware(this)}return _createClass(e,[{key:"add",value:function(e,t){var n=_typeof(e);assert("string"===n||"symbol"===n,"The action must be a Symbol or String, but now is [".concat(n,"].")),assert(!this.reducers.find((function(t){return t.action===e})),"Can't repeat defined [".concat(e.toString(),"] action.")),assertReducer(e,t),filterReducer(this.state,e,t),t.action=e,this.reducers.push(t);var a=t.partialState;isEmptyObject(a)||(this.state=mergeState(this.state,a))}},{key:"dispatch",value:function(e,t,n){var a=this,r=this.reducers,o=this.isDispatching,i=e.toString();assert(!o,'It is not allowed to call "dispatch" during dispatch execution.'+"\n\n   --- from [".concat(i,"] action."));var s=r.find((function(t){return t.action===e}));assert(s,"The [".concat(i,"] action does not exist. ")+"Maybe you have not defined."),this.middleware.process(e,t,(function(e,t){a.isDispatching=!0;try{var r,o=s.namespace,c="string"==typeof o;if(c){var u=a.getModule(o,"\n\n --- from [".concat(i,"] action."));r=s.setter(u,e,a.state)}else r=s.setter(a.state,e);assert(isPlainObject(r),"setter function should be return a plain object."),isEmptyObject(r)||(c?(r=createModuleByNamespace(o,r,a.state,i),a.state=mergeState(a.state,r)):a.state=deepFreeze(mergeModule(a.state,r)))}finally{a.isDispatching=!1,t()}updateComponents(a,n)}))}},{key:"use",value:function(e,t){var n=this;return"function"==typeof e&&e!==COMMONACTION&&(t=e,e=COMMONACTION),this.middleware.use(e,t),function(){return n.middleware.remove(e,t)}}},{key:"setNamespace",value:function(e){assert(e&&"string"==typeof e,"The [namespace] must be a string"),this.GLOBALWORD=e}},{key:"getModule",value:function(e,t){if(assert("string"==typeof e,"the namespace mast be a string"),!e)return this.state;var n=getModule(this.state,e);return t&&null===n&&warning("The [".concat(e,"] module is not exist.").concat(t||"")),n}},{key:"addModule",value:function(e,t){var n=this;if(assert("string"==typeof e,"the namespace mast be a string"),!isEmptyObject(t)){for(var a=0,r=Object.keys(t),o=Object.getOwnPropertySymbols(t),i=function(a){var r=t[a];r.namespace=e,n.add(a,r)};a<r.length;a++)i(r[a]);for(a=0;a<o.length;a++)i(o[a])}}},{key:"rewirteConfigAndAddDep",value:function(e,t){var n=this,a=null,r=this,o=this.GLOBALWORD,i=e.data,s=e.storeConfig,c=void 0===s?{}:s,u=c.useState,l=c.didUpdate,f=c.willUpdate,h=c.defineReducer,d=c.travelLimit,p=void 0===d?0:d;if(assert("number"==typeof p,"[travelLimit] must be a number, but now is [".concat(_typeof(p),"].")),delete e.storeConfig,"function"==typeof h&&h.call(r,r),"function"==typeof u){var y=null,m=null,v=u.call(r,r);Array.isArray(v)?(y=v[0],m=v[1]):m=v,assert(isPlainObject(m),"[useState] must return a plain object, "+"but now is return a [".concat(_typeof(m),"]")),a=function(){return clone(mapObject(m,(function(e){return null===y?e(r.state):e(n.getModule(y,"\n\n   --- from [".concat(y,"] of useState.")),r.state)})))}}if(null!==a){var g=a();isPlainObject(g)&&(i?i[o]=g:e.data=_defineProperty({},o,g))}var b=function(e){if(!1!==callHook(n.hooks,"addDep",[e,t])&&null!==a&&e.data&&isPlainObject(e.data[o])){e.timeTravel=new TimeTravel(e,o,p),n.depComponents.push({isPage:t,component:e,didUpdate:l,willUpdate:f,createState:a});var r=diff(e.data[o],a(),o);r.length>0&&applyPatchs(e,r,o)}};if(t)e.onLoad=createWraper(e.onLoad,(function(){b(this),this.store=r})),e.onUnload=createWraper(e.onUnload,null,(function(){remove(r.depComponents,this)}));else{e.lifetimes=e.lifetimes||{};var O=function(t){return e[t]||e.lifetimes[t]},w=function(t,n){return e[t]=e.lifetimes[t]=n};w("attached",createWraper(O("attached"),(function(){b(this),this.store=r}))),w("detached",createWraper(O("detached"),null,(function(){remove(r.depComponents,this)})))}}}]),e}(),version="0.1.1",nativePage=Page,nativeComponent=Component;function expandConfig(e,t,n){isEmptyObject(t)||(n?mixinMethods(e,t):(e.methods=e.methods||{},mixinMethods(e.methods,t)))}function index(e,t){var n=new Store(t),a=mixin(e);return Page=createWraper(nativePage,(function(e){callHook(t,"createBefore",[e,!0]),expandConfig(e,a,!0),n.rewirteConfigAndAddDep(e,!0)})),Component=createWraper(nativeComponent,(function(e){callHook(t,"createBefore",[e,!1]),expandConfig(e,a,!1),n.rewirteConfigAndAddDep(e,!1)})),n}exports.clone=clone,exports.createModule=createModule,exports.default=index,exports.diff=diff,exports.isModule=isModule,exports.restore=restore,exports.version=version;
diff --git a/package.json b/package.json
index 7ac8fae..1c89489 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@rustle/mp-store",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "A lightweight wechat miniprogram state management library",
   "main": "dist/mpstore.common.js",
   "module": "dist/mpstore.esm.js",
diff --git a/src/module.js b/src/module.js
index ad68474..a029316 100644
--- a/src/module.js
+++ b/src/module.js
@@ -106,16 +106,6 @@ export function createModuleByNamespace (namespace, partialModule, rootModule, s
     const key = segments[i]
     const isLastIndex = i === len - 1
 
-    // the global state certainly module
-    if (i > 0) {
-      assert(
-        isModule(parentModule),
-        'the child modules must be in the parent module.\n\n' +
-          `  the parent module namespace is [${segments[i - 1]}]\n\n` +
-            `  the child module namespace is [${key}]${remaingMsg}`, 
-      )
-    }
-
     if (key in parentModule) {
       assert(
         isModule(parentModule[key]),
@@ -136,6 +126,7 @@ export function createModuleByNamespace (namespace, partialModule, rootModule, s
 
     parentWraper[key] = childModule
     parentWraper = childModule
+    // the parentModule must be a module
     parentModule = childModule
   }