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<!DOCTYPE html> <html> <head> <title>javascript eval方法实现以函数名称的字符串动态执行函数</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> // 定义方法 function testFunc(str) { return "你好：" + str; } $(function (){ $("#btn").click(function (){ var params = $("#name").val(); // 调用 var funcName = "testFunc"; var funcCall = funcName + "('" + params + "');"; var ret = eval(funcCall); // 输出 $("#result").text(ret); }); }); </script> </head> <body> <div> <input type="text" id="name" placeholder="请输入一个参数" /> <button id="btn">执行</button> </div> <div id="result"></div> </body> </html>