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    var obj = {a:10}; function copy(obj){ var newobj = {}; for ( var attr in obj) { newobj[attr] = obj[attr]; } return newobj; } var obj2 = copy(obj); obj2.a = 20; alert(obj.a); //10 var obj = {a:{b:10}}; function copy(obj){ var newobj = {}; for ( var attr in obj) { newobj[attr] = obj[attr]; } return newobj; } var obj2 = copy(obj); obj2.a.b = 20; alert(obj.a.b); //20 var obj = {a:{b:10}}; function deepCopy(obj){ if(typeof obj != 'object'){ return obj; } var newobj = {}; for ( var attr in obj) { newobj[attr] = deepCopy(obj[attr]); } return newobj; } var obj2 = deepCopy(obj); obj2.a.b = 20; alert(obj.a.b); //10 极品粉嫩小泬无遮挡20p图片_国产三区在线视频_亚洲国产精品自在久久出水_国产精品无码久久久久久免费 色综合色狠狠天天综合色 天天综合爱天天综合色 婷婷五月天青青草91 91探花视频在线观看