diff --git a/src/config/index.js b/src/config/index.js
index 298e75b60..f2e169673 100644
--- a/src/config/index.js
+++ b/src/config/index.js
@@ -14,10 +14,29 @@
  */
 
 let apiDomain, imgDomain, assetsUrl, mainUrl, payUrl, zssqUrl, REQ_PWD, CACHE_ENCRYP, API_VERSION, assetsUpUrl // 保融支付的收银台服务地址
+function getSearchString(key) {
+  var str = window.location.href.split('?')[1]
+  str = str.substring(1, str.length) // 获取URL中?之后的字符（去掉第一位的问号）
+  // 以&分隔字符串，获得类似name=xiaoli这样的元素数组
+  var arr = str.split("&")
+  var obj = new Object()
+  // 将每一个数组元素以=分隔并赋给obj对象
+  for (var i = 0; i < arr.length; i++) {
+      var tmp_arr = arr[i].split("=")
+      obj[decodeURIComponent(tmp_arr[0])] = decodeURIComponent(tmp_arr[1])
+  }
+  return obj[key]
+}
 let apiVersion = 'v2'
-if(navigator.userAgent.indexOf('JZG_') > 0){
-  // console.log(navigator.userAgent,'navigator.userAgent')  
-  apiVersion = navigator.userAgent.split('JZG_')[1].split('/')[0].split('_')[1] == 'V3'?'v3':'v2'
+var ua = window.navigator.userAgent.toLowerCase()
+//通过正则表达式匹配ua中是否含有MicroMessenger字符串, 在微信
+if(ua.match(/MicroMessenger/i) == 'micromessenger'){
+  apiVersion = getSearchString('apiVersion')== 'V3'?'v3':'v2';//url中apiVersion没有时，为v2
+}else{
+  // 在app
+  if(navigator.userAgent.indexOf('JZG_') > 0){
+    apiVersion = navigator.userAgent.split('JZG_')[1].split('/')[0].split('_')[1] == 'V3'?'v3':'v2'
+  }
 }
 
 // 可以多个接口域名，按需添加