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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 2021无码最新国产在线观看_国模吧一区二区三区无码_永久免费的av在线电影月网无码 中文字幕熟女乱 亚洲a无码在线 性奴受虐视频在线观看免费无码 五月天电影网