Javascript生成GUID

//JS生成GUID函数,类似.net中的NewID();

function S4()

{

return (((1+Math.random())*0x10000)|0).toString(16).substring(1);

}

function NewGuid()

{

return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());

}

方法二：

function newGuid()

{

var guid = "";

for (var i = 1; i <= 32; i++){

var n = Math.floor(Math.random()*16.0).toString(16);

guid += n;

if((i==8)||(i==12)||(i==16)||(i==20))

guid += "-";

}

return guid;

}