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@@ -0,0 +1,89 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ /* css reset */
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+ ul{
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+ margin: 0;
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+ padding: 0;
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+ }
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+ li{
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+ list-style: none;
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+ }
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+
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+ .bg{
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+ position: fixed;
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+ top: 0;
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+ left: 0;
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+ right: 0;
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+ bottom: 0;
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+ background-color: rgba(0,0,0,0.5);
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+ display: none;
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+ }
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+ .menu{
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+ width: 200px;
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+ height: 300px;
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+ background-color: #fff;
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+ position: fixed;
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+ top: 0;
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+ left: 0;
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+ z-index: 999;
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+ display: none;
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+ }
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+ li{
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+ height: 50px;
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+ text-align: center;
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+ line-height: 50px;
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+ border-bottom: 1px solid #ccc;
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+ }
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+ </style>
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+</head>
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+<body>
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+ <div class="bg"></div>
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+ <div class="menu">
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+ <ul>
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+ <li>菜单一</li>
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+ <li>菜单二</li>
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+ <li>菜单三</li>
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+ </ul>
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+ </div>
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+ <script>
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+ // 获取整个文档
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+ var oDoc = document.documentElement;
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+ // 获取背景蒙板
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+ var oBg = document.getElementsByClassName("bg")[0];
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+ // 获取菜单
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+ var oMenu = document.getElementsByClassName("menu")[0];
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+
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+ // 给整个文档加入右键菜单事件
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+ oDoc.oncontextmenu = function(event){
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+ // 阻止默认事件 preventDefault方法没有代码顺序上的要求
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+ event.preventDefault();
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+ // console.log("右键菜单事件");
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+ // 如果使用return false 阻止默认事件 一定要放在代码部分最后
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+ // return false; // 阻止默认事件
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+ // 显示背景蒙板
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+ oBg.style.display = "block";
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+ // 显示菜单
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+ oMenu.style.display = "block";
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+ // 获取鼠标点击位置
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+ var x = event.clientX;
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+ var y = event.clientY;
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+ // console.log(x,y);
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+ // 设置菜单位置
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+ oMenu.style.top = y + "px";
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+ oMenu.style.left = x + "px";
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+ }
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+ // 给蒙板绑定点击事件
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+ oBg.onclick = function(){
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+ // 隐藏蒙板
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+ oBg.style.display = "none";
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+ // 隐藏菜单
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+ oMenu.style.display = "none";
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+ }
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+ </script>
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+</body>
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+</html>
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