修改foreach示例代码

Signed-off-by: Njiangkai43 <jiangkai43@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-url.md

@@ -669,9 +669,9 @@ forEach(callbackFn: (value: string, key: string, searchParams: this) => void, th
 **示例：**
 
 ```js
-const myURLObject = Url.URL.parseURL('https://developer.exampleUrl/?fod=1&bard=2'); 
-myURLObject.params.forEach((value, name, searchParams) => {  
-    console.log(name, value, myURLObject.params === searchParams);
+const myURLObject = new Url.URL('https://developer.exampleUrl/?fod=1&bard=2'); 
+myURLObject.searchParams.forEach((value, name, searchParams) => {  
+    console.log(name, value, myURLObject.searchParams === searchParams);
 });
 ```