Prototype - show() 方法

此方法显示并返回元素。

此方法无法显示通过 CSS 样式表隐藏的元素。请注意，这不是 Prototype 限制，而是 CSS display 属性工作方式的结果。

语法

element.show();

返回值

显示并返回 HTML 元素。

示例

<html>
   <head>
      <title>Prototype examples</title>
      <script type = "text/javascript" src = "/javascript/prototype.js"></script>
      
      <script>
         function hideElement() {
            $('grandfather').hide();
         }
         function showElement() {
            $('grandfather').show();
         }
      </script>
   </head>

   <body>
      <p>单击按钮查看结果。</p>
      
      <div id = "grandfather" >This is grand father
         <div id = "father"> This is father.
            <div id = "kid" >This is kid</div>
         </div>
      </div>
      <br />
      
      <input type = "button" value = "Hide" onclick = "hideElement();"/>
      <input type = "button" value = "Show" onclick = "showElement();"/>
   </body>
</html>

输出

prototype_element_object.html