diff --git a/src/react/ReactChildren.js b/src/react/ReactChildren.js
index bbc07d81edaad3705a3dca0942e1cbc01bff2624..fd2379bee73273cca19a95bef40614dc1cbcaebe 100644
--- a/src/react/ReactChildren.js
+++ b/src/react/ReactChildren.js
@@ -1,6 +1,39 @@
 function mapChildren(children, func, context) {
     //TODO实现此mapChildren方法
-    return children;
+
+    function FlatArr(arr,newArr,count){
+
+        // debugger
+        if(Array.isArray(arr)){
+            arr.forEach((item,index)=>{
+                if(Array.isArray(item)){
+                    FlatArr(item,newArr,index)
+                }else{
+
+                    let str = '';
+                    if((item.key==undefined&&item.props.children.key==undefined)){
+                        str +=".0";
+                    }
+                     str +=  item.props.children.key && `${item.props.children.key}/`||count||'';
+                    str+= (item.key && `.$${item.key}`  || '');
+                    item.key = str;
+                    newArr.push(item)
+                }
+            })
+        }
+    }
+    let arrList = [];//原始的虚拟dom数组
+    let returnArrList = [];//返回的虚拟dom数组
+    let virtualDoms;//需要运行的虚拟dom
+
+    FlatArr(children,arrList);
+    virtualDoms = arrList.map(func)
+    FlatArr(virtualDoms,returnArrList)
+
+    // console.log('children:', children);
+    // console.log('virtualDoms:', returnArrList);
+
+    return returnArrList;
 }
 
 export {