diff --git a/README.md b/README.md
index f44ad6b..590955a 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
                                                                                  \_/__/
 ```
 
-# Underscore.go [![GoDoc](https://godoc.org/github.com/ahl5esoft/golang-underscore?status.svg)](https://godoc.org/github.com/ahl5esoft/golang-underscore) [![Go Report Card](https://goreportcard.com/badge/github.com/ahl5esoft/golang-underscore)](https://goreportcard.com/report/github.com/ahl5esoft/golang-underscore) ![Version](https://img.shields.io/badge/version-2.2.2-green.svg)
+# Underscore.go [![GoDoc](https://godoc.org/github.com/ahl5esoft/golang-underscore?status.svg)](https://godoc.org/github.com/ahl5esoft/golang-underscore) [![Go Report Card](https://goreportcard.com/badge/github.com/ahl5esoft/golang-underscore)](https://goreportcard.com/report/github.com/ahl5esoft/golang-underscore) ![Version](https://img.shields.io/badge/version-2.3.0-green.svg)
 like <a href="http://underscorejs.org/">underscore.js</a> and C# LINQ, but for Go
 
 ## Installation
diff --git a/chain.go b/chain.go
index f00715a..41920f8 100644
--- a/chain.go
+++ b/chain.go
@@ -71,6 +71,12 @@ func chainFromValue(value reflect.Value) IEnumerable {
 			}
 		}
 
+		if value.Kind() == reflect.Ptr {
+			return chainFromValue(
+				value.Elem(),
+			)
+		}
+
 		return enumerable{
 			Enumerator: func() IEnumerator {
 				return nullEnumerator{
diff --git a/chain_test.go b/chain_test.go
index d38afee..85e39a7 100644
--- a/chain_test.go
+++ b/chain_test.go
@@ -1,6 +1,10 @@
 package underscore
 
-import "testing"
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
 
 var benchmarkSize = 1000000
 
@@ -31,3 +35,14 @@ func Benchmark_Chain(b *testing.B) {
 		}).First().Value(&dst)
 	}
 }
+
+func Test_Chain(t *testing.T) {
+	t.Run("指针", func(t *testing.T) {
+		src := []int{1, 2, 3}
+		var res []int
+		Chain(&src).MapMany(func(r, i int) []int {
+			return []int{r, i}
+		}).Value(&res)
+		assert.EqualValues(t, res, []int{1, 0, 2, 1, 3, 2})
+	})
+}
diff --git a/go.sum b/go.sum
index 31aac12..c69ae42 100644
--- a/go.sum
+++ b/go.sum
@@ -1,16 +1,13 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=