js 字符串随机转换位置

var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

http://www.2cto.com/kf/201210/162522.html

有实例了直接搞他代码不就行了

 function order(a){
var t="";while(a!=""){b=a.length;c=Math.floor(Math.random()*99999)%b;t+=a.substr(c,1);a=a.substr(0,c)+a.substring(c+1)}
return t.replace(/</g,"&lt;");
}
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
possible=order(possible)
console.log(possible)