diff --git a/src/react/ReactChildren.js b/src/react/ReactChildren.js
index bbc07d81edaad3705a3dca0942e1cbc01bff2624..038719eee7a9c007639e99d231d1296344d6ce2f 100644
--- a/src/react/ReactChildren.js
+++ b/src/react/ReactChildren.js
@@ -1,8 +1,28 @@
 function mapChildren(children, func, context) {
-    //TODO实现此mapChildren方法
-    return children;
+  //TODO实现此mapChildren方法
+  // return children;
+  let childArray = [];
+  let key = 0;
+  const renderChild = (children, index, flatKey) => {
+    if (index === children.length) {
+      return;
+    }
+    if (Array.isArray(children[index])) {
+      renderChild(children[index], 0, `${flatKey}${index}:`);
+    } else {
+      let currentChild = children[index];
+      let callBackData = func(currentChild, key);
+      callBackData.forEach((element) => {
+        let childKey = currentChild.key ? `$${currentChild.key}` : index;
+        element.key = `${flatKey}${childKey}/.$${element.key}`;
+        childArray.push(element)
+      });
+      key++;
+      return renderChild(children, ++index, flatKey);
+    }
+  };
+  renderChild(children, 0, ".");
+  return childArray;
 }
 
-export {
-    mapChildren as map,
-};
\ No newline at end of file
+export { mapChildren as map };