<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> *{ margin:0; padding:0; } ul, ul li{ list-style:none; } #list{ width:80px; border:1px solid #ccc; box-shadow:2px 2px 2px #ccc; display:none; position: absolute; } #list li{ border-bottom:1px solid #ccc; height:24px; line-height:24px; text-align:center; cursor: pointer; } #list li:last-child{ border-bottom:none; } </style> </head> <body> <ul id="list"> <li>查看</li> <li>删除</li> <li>复制</li> <li>粘贴</li> </ul> <script> var list = document.getElementById(‘list‘); /* 1.阻止默认事件 2.添加自己的事件，自定义菜单 */ // 右键事件 oncontextmenu document.oncontextmenu = function(ev){ var eve = event || ev; eve.preventDefault(); // 阻止默认行为 list.style.display = ‘block‘; list.style.left = eve.clientX + ‘px‘; list.style.top = eve.clientY + ‘px‘; } // 左键事件 document.onclick = function(){ list.style.display = ‘none‘; } </script> </body> </html>
原文：https://www.cnblogs.com/shihaiying/p/13275932.html