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;??? ???????}??? ???}有些不懂.