function clone(Obj) {   
        var buf;   
        if (Obj instanceof Array) {   
            buf = [];  //創(chuàng)建一個(gè)空的數(shù)組 
            var i = Obj.length;   
            while (i--) {   
                buf[i] = clone(Obj[i]);   
            }   
            return buf;   
        }else if (Obj instanceof Object){   
            buf = {};  //創(chuàng)建一個(gè)空對(duì)象 
            for (var k in Obj) {  //為這個(gè)對(duì)象添加新的屬性 
                buf[k] = clone(Obj[k]);   
            }   
            return buf;   
        }else{   
            return Obj;   
        }   
    }