代码如下：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script type="text/javascript" src="https://www.xipwang.cn/js/zepto.min.js"></script> </head> <body> <div> <input type="password"> <button >查看密码</button> </div> <script type="text/javascript"> $(function(){ (function(){ $.fn.showpassWord = function () { //查看密码 function Seepasswrod(elemnts) { this.elemnts = elemnts; this.init(); }; Seepasswrod.prototype = { init: function () { var m = this this.shouEvent(m); }, shouEvent: function (m) { m.elemnts.on("tap click", function () { var type = m.elemnts.parent().find(".passwords").attr("type"); if (type == "password") { m.elemnts.parent().find(".passwords").attr("type", "text"); } else if (type == "text") { m.elemnts.parent().find(".passwords").attr("type", "password"); } }); }, }; return this.each(function () { new Seepasswrod($(this)) }); }; })(Zepto); $(".seepassword").showpassWord(); }); </script> </body> </html>