JavaScript实现模态对话框实例

站长资源 2024/12/27 佚名

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这篇文章主要介绍了JavaScript实现模态对话框实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>dialogue</title>
  <style>
    *{
      margin: 0;
    }
    .hide{
      display: none;
    }
    #div1{
      height: 2000px;
      background-color: #b4b4b4;
      position: fixed;
      width: 100%;
      top: 0;
      left: 0;
    }
    #div2{
      /*display: none;*/
      background-color: red;
      opacity: 0.1;
      position: fixed;
      width: 100%;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;

    }
    #div3{
      /*display: none;*/
      height: 200px;
      width: 200px;
      z-index: 1002;
      background-color: crimson;
      position: absolute;
      top: 50%;
      left:50%;
      margin-left: -100px;
      margin-top: -100px;
    }
  </style>
</head>
<body>
<div id="div1">
  <input type="button" value="click" onclick="show()">
</div>
<div id="div2" class="div hide"></div>
<div id="div3" class="div hide">
  <input type="button" value="cancel" onclick="cancel()">
</div>

<script>
  function show() {
    var ele = document.getElementsByClassName("div");
    for (var i = 0; i < ele.length; i++) {
      ele[i].classList.remove("hide");
      console.log(i);
    }
  }
   function cancel(){
      var ele=document.getElementsByClassName("div");
      for (var i=0;i<ele.length;i++){
        ele[i].classList.add(("hide"));
      }
   }

</script>
</body>
</html>

初始页面如下: