JS method to implement click cycle switching to display content-JS Tutorial-php.cn

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JS method to implement click cycle switching to display content

韦小宝

Jan 11, 2018 am 10:14 AM

javascriptswitchshow

This article mainly introduces the method of JS to realize click cycle switching to display content, involving javascript mouse event response, acquisition of page elements, attribute setting and other related operation skills. Friends who are familiar with js can refer to the following This article

The example of this article describes the method of using JS to switch the display content by clicking in a loop. Share it with everyone for your reference, the details are as follows:

The specific code is as follows:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>www.php.cn 点击循环切换内容</title>
  <style>
    a {
      cursor: pointer;
      color: red;
    }
    p {
      display: none;
    }
  </style>
</head>
<body>
  <a onclick="con()">循环切换内容</a>
  <p>11111</p>
  <p>22222</p>
  <p>33333</p>
  <script>
    //可以换成切换图片等等
    flag = 0;
    pre = 0;
    function con(){
      var cons = document.getElementsByTagName("p");
      document.getElementsByTagName("p")[pre].style.display = "none";
      document.getElementsByTagName("p")[flag].style.display = "inline";
      console.log(flag);
      pre = flag;
      if(flag == cons.length - 1) { //注意是cons.length-1，因为索引值是从0开始的
        flag = 0;
      } else {
        ++flag;
      }
    }
  </script>
</body>
</html>

The above is all the content of this article. I hope it will be helpful to everyone learning js!

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