co 并发，发送微信模板消息，为什么只能接受到几条数据

[anxiaowen2]

封装了一个co发送一条模板消息的方法，然后co 调用并发，但是却不能接受到所有的模板消息，微信用户接受模板消息有限制吗？
1：封装方法

function* cosendfc(prepareid){
    let API = require('wechat-api');
    let api = new API(defaultAppid, defaultsecrut, function (callback) {
        // 传入一个获取全局token的方法
        client.hget(hash_currTickets,defaultAppid, function(err, ret){
            if(err){          
                return callback('[90]hget error. err=' + err);
            }
            // return callback(null,JSON.parse(ret));
            var currACTicket = JSON.parse(ret);
            if (currACTicket !== undefined && currACTicket !== null && currACTicket !== '') {           
                return callback(null,currACTicket);
            }else{           
                return callback(null,{
                    access_token: '',
                    expire_time: 0
                });
            }
        });
        
    }, function (token, callback) {
    // 请将token存储到全局，跨进程、跨机器级别的全局，比如写到数据库、redis等
        client.hset(hash_currTickets, defaultAppid, JSON.stringify(token), function(err, ret){
            if(err){
                return callback('[109]hset error. err=' + err);
            }
            return callback(null);
        });
    });
    var sendinfo = '';
    let statu =  Promise.resolve(new Promise(
        (resolve,reject) => client.hget(store_prepare,prepareid,(err, res) => err ? reject(err) : resolve(res))
    ));
    let length =   Promise.resolve(new Promise(
        (resolve,reject) => client.llen(prepareid,(err, res) => err ? reject(err) : resolve(res))
    ));
    let lpopcontent = Promise.resolve(new Promise(
        (resolve,reject) => client.lpop(prepareid,(err, res) => err ? reject(err) : resolve(res))
    ));
    sendinfo = JSON.parse(lpopcontent);
    console.log(sendinfo);
    let openid = sendinfo.openid;
    let templateId = sendinfo.templateId;
    let data = sendinfo.data;
    let url = sendinfo.url;
    let uid = sendinfo.uid;
    data.first.value = Math.floor(Math.random() * 10000 + 1);//测试的代码，上线需注释	
    data.keyword1.value = Math.floor(Math.random() * 10000 + 1);//测试的代码，上线需注释	
    let sendtesult =  Promise.resolve(new Promise(
        (resolve,reject) => api.sendTemplate(openid,templateId,url,data,(err, res) => err ? resolve(err) : resolve(res))
    ));
    return sendtesult;
}

2：co并发处理

	co(function* () {       
        var rs = yield [
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            //10
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            cosendfc(prepareid),
            //20
          ];
		return rs;
	  }).then(function (value) {
        console.log(value);
        return callback(null,value);
      });