可以先直接在线生成一个uuid，预览一下，

这个网站不错，可以选择uuid version，还可以直接去掉中划线，好用的不得了啊，哈哈

 

//On creation of a UUID object, set it's initial valuefunction UUID(){    this.id = this.createUUID();}// When asked what this Object is, lie and return it's valueUUID.prototype.valueOf = function(){ return this.id; };UUID.prototype.toString = function(){ return this.id; };//// INSTANCE SPECIFIC METHODS//UUID.prototype.createUUID = function(){    //    // Loose interpretation of the specification DCE 1.1: Remote Procedure Call    // since JavaScript doesn't allow access to internal systems, the last 48 bits    // of the node section is made up using a series of random numbers (6 octets long).    //     var dg = new Date(1582, 10, 15, 0, 0, 0, 0);    var dc = new Date();    var t = dc.getTime() - dg.getTime();    var tl = UUID.getIntegerBits(t,0,31);    var tm = UUID.getIntegerBits(t,32,47);    var thv = UUID.getIntegerBits(t,48,59) + '1'; // version 1, security version is 2    var csar = UUID.getIntegerBits(UUID.rand(4095),0,7);    var csl = UUID.getIntegerBits(UUID.rand(4095),0,7);    // since detection of anything about the machine/browser is far to buggy,    // include some more random numbers here    // if NIC or an IP can be obtained reliably, that should be put in    // here instead.    var n = UUID.getIntegerBits(UUID.rand(8191),0,7) +            UUID.getIntegerBits(UUID.rand(8191),8,15) +            UUID.getIntegerBits(UUID.rand(8191),0,7) +            UUID.getIntegerBits(UUID.rand(8191),8,15) +            UUID.getIntegerBits(UUID.rand(8191),0,15); // this last number is two octets long    return tl + tm  + thv  + csar + csl + n;};//Pull out only certain bits from a very large integer, used to get the time//code information for the first part of a UUID. Will return zero's if there//aren't enough bits to shift where it needs to.UUID.getIntegerBits = function(val,start,end){    var base16 = UUID.returnBase(val,16);    var quadArray = new Array();    var quadString = '';    var i = 0;    for(i=0;i
     
      <= aUUID.rand = function(max){    return Math.floor(Math.random() * (max + 1));};
     

调用方法：UUID.prototype.createUUID()