打乱数组顺序

 方法一
function randArray(data){
    //获取数组长度
    var arrlen = data.length;
    //创建数组 存放下标数
    var try1 = new Array();
    for(var i = 0;i < arrlen; i++){
        try1[i] = i;
    }
    //创建数组 生成随机下标数
    var try2 = new Array();
    for(var i = 0;i < arrlen; i++){
        try2[i] = try1.splice(Math.floor(Math.random() * try1.length),1);
    }
    //创建数组，生成对应随机下标数的数组
    var try3 = new Array();
    for(var i = 0; i < arrlen; i++){
        try3[i] = data[try2[i]];
    }
    return try3;
}
var arr = ["a","b","c","d"];
alert(randArray(arr));







方法二

RenWuWzXxCS.sort(function() {
return 0.5 - Math.random()
})

RenWuWzXxCS为要打乱的数组