diff --git a/homework/716.md b/homework/716.md
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+```
+//生成一个无任何关联的对象
+function getPooledTraverseContext(result:any,fn:any) {
+    let obj = Object.create(null);
+    obj.fn = fn;
+    obj.result = result;
+    return obj;
+}
+let flag = true;
+function mapSingleChildIntoContext(bookKeeping:any, child:any, childKey:any) {
+    var result = bookKeeping.result,
+        func = bookKeeping.fn;
+    var mappedChild = func.call(null, child, bookKeeping.count++);
+    flag = flag ? false : flag;
+    if(Array.isArray(mappedChild)){
+        mapIntoWithKeyPrefixInternal(mappedChild,result,(c:any)=>c);
+    } else if (mappedChild != null) {
+        result.push(mappedChild);
+    }
+}
+function traverseAllChildrenImpl(children:any, nameSoFar:any, callback:any, traverseContext:any) {
+    if(flag || !Array.isArray(children)){
+        callback(traverseContext,children)
+    }
+    if(Array.isArray(children)){
+        for(let i = 0;i < children.length;i++){
+            let child = children[i];
+            traverseAllChildrenImpl(child,nameSoFar,callback,traverseContext);
+        }
+    }
+}
+function traverseAllChildren(childrens:any,callback:any,traverseContext:any,prifx = '') {
+    return traverseAllChildrenImpl(childrens, '', callback, traverseContext);
+}
+function mapIntoWithKeyPrefixInternal(childrens:any,result:any,fn:any) {
+    var traverseContext = getPooledTraverseContext(result,fn);
+    traverseAllChildren(childrens,mapSingleChildIntoContext,traverseContext)
+}
+// 我的map方法的实现
+function myMapChildren(childrens:any,fn:any) {
+    if(childrens == null){
+        return childrens;
+    }
+    var result:any = [];
+    mapIntoWithKeyPrefixInternal(childrens,result,fn);
+    return result;
+}
+
+```
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