1 (function ($) { 2     function guid(g) { 3         var arr = new Array(); //存放32位数值的数组 4         if (typeof (g) == "string") { //如果构造函数的参数为字符串 5             initializeByString(arr, g); 6         } else { 7             initializeByOther(arr); 8         } 9         //返回一个值，该值指示 Guid 的两个实例是否表示同一个值。10         this.equals = function (o) {11             if (o && o.isGuid()) {12                 return this.toString() == o.toString();13             }14             else {15                 return false;16             }17         }18         //Guid对象的标记19         this.isGuid = function () {20             return /^[0-9a-fA-F]{32}?$|^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}?$/.test(this);21         }22         //返回 Guid 类的此实例值的 String 表示形式。23         this.toString = function (format) {24             if (typeof (format) == "string") {25                 if (format == "N" || format == "D" || format == "B" || format == "P") {26                     return toStringWithFormat(arr, format);27                 } else {28                     return toStringWithFormat(arr, "D");29                 }30             }31             else {32                 return toStringWithFormat(arr, "D");33             }34         }35         //由字符串加载36         function initializeByString(arr, g) {37             g = g.replace(/\{|\(|\)|\}|-/g, "");38             g = g.toLowerCase();39             if (g.length != 32 || g.search(/[^0-9,a-f]/i) != -1) {40                 initializeByOther(arr);41             } else {42                 for (var i = 0; i < g.length; i++) {43                     arr.push(g[i]);44                 }45             }46         }47         //由其他类型加载48         function initializeByOther(arr) {49             var i = 32;50             while (i--) {51                 arr.push("0");52             }53         }54         /*55         根据所提供的格式说明符，返回此 Guid 实例值的 String 表示形式。56         N  32 位： xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx57         D  由连字符分隔的 32 位数字 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx58         B  括在大括号中、由连字符分隔的 32 位数字：{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}59         P  括在圆括号中、由连字符分隔的 32 位数字：(xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)60         */61         function toStringWithFormat(arr, format) {62             switch (format) {63                 case "N":64                     return arr.toString().replace(/,/g, "");65                 case "D":66                     var str = arr.slice(0, 8) + "-" + arr.slice(8, 12) + "-" + arr.slice(12, 16) + "-" + arr.slice(16, 20) + "-" + arr.slice(20, 32);67                     str = str.replace(/,/g, "");68                     return str;69                 case "B":70                     var str = toStringWithFormat(arr, "D");71                     str = "{" + str + "}";72                     return str;73                 case "P":74                     var str = toStringWithFormat(arr, "D");75                     str = "(" + str + ")";76                     return str;77                 default:78                     return new Guid();79             }80         }81     }82     $.extend({ guidEx: guid });83     $.extend($.guidEx, {84         enpty: function () {85             return new guid();86         },87         newGuid: function () {88             var g = "";89             var i = 32;90             while (i--) {91                 g += Math.floor(Math.random() * 16.0).toString(16);92             }93             return new guid(g);94         },95         isGuid: function (g) {96             return /^[0-9a-fA-F]{32}?$|^[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}?$/.test(g);97         }98     });99 })(jQuery);