C# 鐞嗚В娴呮嫹璐濆拰娣辨嫹璐�(shallow copy VS deep copy )(1)
public class Person
{
public int Age { get; set; }
public string Address { get; set; }
public Name Name { get; set; }
public object Clone()
{
return this.MemberwiseClone();
}
}
public class Name
{
public Name(string frisName,string lastName)
{
FristName = frisName;
LastName = lastName;
}
public string FristName { get; set; }
public string LastName { get; set; }
}
璧嬪�兼搷浣�(=)VS浣跨敤Object绫籑emberwiseClone瀹炵幇
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娴呮嫹璐濆悗鐨勫璞＄殑鍊肩被鍨嬪瓧娈垫洿鏀逛笉浼氬弽鏄犲埌婧愬璞★紝鑰岃祴鍊艰繍绠楀悗鐨勫璞＄殑鍊肩被鍨嬪瓧娈垫洿鏀逛細鍙嶆槧鍒版簮瀵硅薄
浠ｇ爜瀹炵幇濡備笅锛�
public class Person
{
public int Age { get; set; }
public string Address { get; set; }
public Name Name { get; set; }
}
public class Name
{
public Name(string frisName,string lastName)
{
FristName = frisName;
LastName = lastName;
}
public string FristName { get; set; }
public string LastName { get; set; }
}
娣辨嫹璐濆疄鐜�
鐩稿浜庢祬鎷疯礉,鏄寚鎸夌収婧愬璞′负鍘熷舰锛屾爲绔嬩竴涓柊瀵硅薄锛屽皢褰撳墠瀵硅薄鐨勬墍鏈夊瓧娈佃繘琛屾墽琛岄�愪綅澶嶅埗骞舵敮鎸侀�掑綊锛屼笉绠℃槸鏄�肩被鍨嬭繕鏄紩鐢ㄧ被鍨嬶紝涓嶇鏄潤鎬佸瓧娈佃繕鏄潪闈欐�佸瓧娈点�傚湪C#涓紝鎴戜滑浠湁涓夌鏂规硶瀹炵幇娣辨嫹璐�
鈥�鐢佃剳琛�鈥濇杩庢偍銆�
瀹炵幇ICloneable鎺ュ彛锛岃嚜瀹氫箟鎷疯礉鍔熻兘銆�
ICloneable 鎺ュ彛锛屾敮鎸佸厠闅嗭紝鍗崇敤涓庣幇鏈夊疄渚嬬浉鍚岀殑鍊煎垱寤虹被鐨勬柊瀹炰緥銆�
ICloneable 鎺ュ彛鍖呮兜涓�涓垚鍛� Clone锛屽畠鐢ㄤ簬鏀寔闄� MemberwiseClone 鎵�鎻愪緵鐨勫厠闅嗕箣澶栫殑鍏嬮殕銆�
Clone 鏃㈠彲浣滀负娣卞眰鍓湰瀹炵幇锛屼篃鍙綔涓烘祬琛ㄥ壇鏈疄鐜般�傚湪娣卞眰鍓湰涓紝鎵�鏈夌殑瀵硅薄閮芥槸閲嶅鐨勶紱鑰屽湪娴呰〃鍓湰涓紝鍙湁椤剁骇瀵硅薄鏄噸澶嶇殑锛屽苟涓旈《绾т互涓嬬殑瀵硅薄鍖呭惈寮曠敤銆� 缁撴灉鍏嬮殕蹇呴』涓庡師濮嬪疄渚嬪叿鏈夌浉鍚岀殑绫诲瀷鎴栨槸鍘熷瀹炰緥鐨勫吋瀹圭被鍨嬨��
浠ｇ爜瀹炵幇濡備笅锛�
public class Person:ICloneable
{
public int Age { get; set; }
public string Address { get; set; }
public Name Name { get; set; }
public object Clone()
{
Person tem = new Person();
tem.Address = this.Address;
tem.Age = this.Age;
tem.Name = new Name(this.Name.FristName, this.Name.LastName);
return tem;
}
}
public class Name
{
public Name(string frisName, string lastName)
{
FristName = frisName;
LastName = lastName;
}
public string FristName { get; set; }
public string LastName { get; set; }
}
澶у鍙互鐪嬪埌,Person绫荤户鎵夸簡鎺ュ彛ICloneable骞舵墜鍔ㄥ疄鐜颁簡鍏禖lone鏂规硶,杩欐槸涓畝鍗曠殑绫�,璇曟兂涓�涓�,濡傛灉浣犵殑绫绘湁鎴愬崈涓婁竾涓紩鐢ㄧ被鍨嬫垚鍛�(褰撶劧澶じ寮�,鍑犲崄涓繕鏄湁鐨�)锛岃繖鏄笉鏄唤寰堟亹鎬栫殑鍔冲姏娲伙紵搴忓垪鍖�/鍙嶅簭鍒楀寲绫诲疄鐜�
涓嶇煡閬撲綘鏈夋病鏈夋敞鎰忓埌DataSet瀵硅薄,瀵逛簬浠栨彁渚涚殑涓や釜鏂规硶:
DataSet.Clone 鏂规硶锛屽鍒� DataSet 鐨勭粨鏋勶紝鍖呮嫭鎵�鏈� DataTable 鏋舵瀯銆佸叧绯诲拰绾︽潫銆備笉瑕佸鍒朵换浣曟暟鎹�傛柊 DataSet锛屽叾鏋舵瀯涓庡綋鍓� DataSet 鐨勬灦鏋勭浉鍚岋紝浣嗘槸涓嶅寘鍚换浣曟暟鎹�傛敞鎰� 濡傛灉宸插缓绔嬭繖浜涚被鐨勫瓙绫伙紝鍒欏鏈篃灏嗗睘浜庣浉鍚岀殑瀛愮被銆�
DataSet.Copy 鏂规硶澶嶅埗璇� DataSet 鐨勭粨鏋勫拰鏁版嵁.鏂扮殑 DataSet锛屽叿鏈変笌璇� DataSet 鐩稿悓鐨勭粨鏋勶紙琛ㄦ灦鏋勩�佸叧绯诲拰绾︽潫锛夊拰鏁版嵁銆傛敞鎰忚鏄凡鏍戠珛杩欎簺绫荤殑瀛愮被锛屽垯鍓湰涔熷皢灞炰簬鐩稿悓鐨勫瓙绫汇��
濂藉儚鏃笉鏄祬鎷疯礉,鍙堜
