更改框体主要用到的是更改系统的内置控件winpop下面是winpop具体代码

(function(window, jQuery, undefined) { var HTMLS = { ovl: '<div id="J_WinpopMask"></div>' + '<div id="J_WinpopBox">' + '<div></div>' + '<div></div>' + '</div>', alert: '<input type="button" value="确定">', confirm: '<input type="button" value="取消">' + '<input type="button" value="确定">' } function Winpop() { var config = {}; this.get = function(n) { return config[n]; } this.set = function(n, v) { config[n] = v; } this.init(); } Winpop.prototype = { init: function() { this.createDom(); this.bindEvent(); }, createDom: function() { var body = jQuery("body"), ovl = jQuery("#J_WinpopBox"); if (ovl.length === 0) { body.append(HTMLS.ovl); } this.set("ovl", jQuery("#J_WinpopBox")); this.set("mask", jQuery("#J_WinpopMask")); }, bindEvent: function() { var _this = this, ovl = _this.get("ovl"), mask = _this.get("mask"); ovl.on("click", ".J_AltBtn", function(e) { _this.hide(); }); ovl.on("click", ".J_CfmTrue", function(e) { var cb = _this.get("confirmBack"); _this.hide(); cb && cb(true); }); ovl.on("click", ".J_CfmFalse", function(e) { var cb = _this.get("confirmBack"); _this.hide(); cb && cb(false); }); mask.on("click", function(e) { _this.hide(); }); jQuery(document).on("keyup", function(e) { var kc = e.keyCode, cb = _this.get("confirmBack");; if (kc === 27) { _this.hide(); } else if (kc === 13) { _this.hide(); if (_this.get("type") === "confirm") { cb && cb(true); } } }); }, alert: function(str, btnstr) { var str = typeof str === 'string' ? str : str.toString(), ovl = this.get("ovl"); this.set("type", "alert"); ovl.find(".J_WinpopMain").html(str); if (typeof btnstr == "undefined") { ovl.find(".J_WinpopBtns").html(HTMLS.alert); } else { ovl.find(".J_WinpopBtns").html(btnstr); } this.show(); }, confirm: function(str, callback) { var str = typeof str === 'string' ? str : str.toString(), ovl = this.get("ovl"); this.set("type", "confirm"); ovl.find(".J_WinpopMain").html(str); ovl.find(".J_WinpopBtns").html(HTMLS.confirm); this.set("confirmBack", (callback || function() {})); this.show(); }, show: function() { this.get("ovl").show(); this.get("mask").show(); }, hide: function() { var ovl = this.get("ovl"); ovl.find(".J_WinpopMain").html(""); ovl.find(".J_WinpopBtns").html(""); ovl.hide(); this.get("mask").hide(); }, destory: function() { this.get("ovl").remove(); this.get("mask").remove(); delete window.alert; delete window.confirm; } }; var obj = new Winpop(); window.alert = function(str) { obj.alert.call(obj, str); }; window.confirm = function(str, cb) { obj.confirm.call(obj, str, cb); }; })(window, jQuery);

然后实例化对象

var obj = new Winpop(); // 创建一个Winpop的实例对象 // 覆盖alert控件 window.alert = function(str) { obj.alert.call(obj, str); }; // 覆盖confirm控件 window.confirm = function(str, cb) { obj.confirm.call(obj, str, cb); };

以下JS不可少

<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script> <script src="winpop.js"></script>

以上所述就是本文的全部内容了，希望对大家能够有所帮助。