20200823更新

 <script>
        var arr=new Array();
        var arrr=new Array(0);
        var a="你好$wwww.com#你好1$eeee.com#你好2$rrr.com$$$你好$wwww1.com#你好1$eeee1.com#你好2$rrr1.com";
        var b=a.split("$$$");
        // console.log(b);
        for(var i=0;i<b.length;i++){
            console.log("第"+(i+1)+"层");
            // arr[i]=b[i];
            var x=b[i].split("#");
            // console.log(x);
            arr[i]=x;
            arrr[i]=arr[i];//赋值
            console.log(arr[i]);
            for(var j=0;j<arr[i].length;j++){
                // arrr[j]=arr[i][j].split("$");
               
                arrr[i][j]=arr[i][j].split("$");
                // console.log(arr);
            }
        }
        console.log(arr)
        console.log(arrr);
    </script>