参考手册

参考手册

实例 使用 document.createElement() 创建一个元素，并将其包裹每个选定元素的内容

​x
 
<!DOCTYPE html>
<html>
<head>
<script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p").wrapInner(document.createElement("b"));
  });
});
</script>
</head>
<body>
​
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
​
<button>Create a new b element and wrap around the content of each p element</button>
​
</body>
</html>
​
                    

输出结果