C++
涓紝綾葷殑浣跨敤鑰呭喅瀹氫簡(jiǎn)綾葷殑瀹炰緥鍐呭瓨浼?xì)濡備綍鍒嗛厤锛屽垎閰嶅湪鍫嗕笂杩樻槸鏍堜笂銆傛垜浠厛鐪嬩竴孌典緥瀛愮▼搴忥細(xì)
#include
"stdio.h"
class
Demo{
public
:
聽聽聽
int i;
聽聽聽
char* objName;
聽聽聽 Demo(){
聽聽聽聽聽聽聽 objName = "Default object.";
聽聽聽聽聽聽聽 printf("%s, objName = %s\r\n", "Enter Demo default ctor. method.", objName);
聽聽聽聽聽聽聽
聽聽聽聽聽聽聽 i = 1000;
聽聽聽 }
聽聽聽 Demo(int ival, char* name){
聽聽聽聽聽聽聽 printf("%s,i = %d, objName = %s\r\n", "Enter Demo(int ival) ctor method", ival, name);
聽聽聽聽聽聽聽 i = ival;
聽聽聽聽聽聽聽 objName = name;
聽聽聽 }
聽聽聽 Demo(const Demo& d){
聽聽聽聽聽聽聽 printf("%s\r\n", "Enter Demo copy ctor method.");
聽聽聽聽聽聽聽 i = d.i;
聽聽聽聽聽聽聽 objName = "copied d";
聽聽聽 }
聽聽聽 ~Demo(){
聽聽聽聽聽聽聽 printf("%s, i = %d, objName = %s\r\n", "Enter Demo dector. method" , i, objName);
聽聽聽 }
};
Demo& testMethod0(){
聽聽聽 printf("%s\r\n", "Enter testMethod0.");
聽聽聽 Demo d(0, "d in testMethod0");
聽聽聽 printf("%s\r\n", "Exit testMethod0.");
聽聽聽
return d;
}
Demo testMethod1(){
聽聽聽 printf("%s\r\n", "Enter testMethod1.");
聽聽聽 Demo d(1, "d in testMethod1");
聽聽聽 printf("%s\r\n", "Exit testMethod1.");
聽聽聽
return d;
}
Demo* testMethod2(){
聽聽聽 printf("%s\r\n", "Enter testMethod2.");
聽聽聽 Demo *d = new Demo(2, "d in testMethod2");
聽聽聽 printf("%s\r\n", "Exit testMethod2.");
聽聽聽
return d;
}
int
main(int argc, _TCHAR* argv[])
{
聽聽聽 Demo d;
聽聽聽 d = testMethod1();
聽聽聽 Demo& d1 = testMethod0();
聽聽聽 Demo d2(999, "d1");
聽聽聽 Demo* d3 = testMethod2();
聽聽聽 printf("d.i = %d\r\n", d.i);
聽聽聽 printf("d1.i = %d\r\n", d1.i);
聽聽聽 printf("d2.i = %d\r\n", d2.i);
聽聽聽 printf("d3.i = %d\r\n", d3->i);
聽聽聽
delete d3;
聽聽聽
return 0;
}
Output
錛?/span>
Enter Demo default ctor. method., objName = Default object.
Enter testMethod1.
Enter Demo(int ival) ctor method,i = 1, objName = d in testMethod1
Exit testMethod1.
Enter Demo copy ctor method.
Enter Demo dector. method, i = 1, objName = d in testMethod1
Enter Demo dector. method, i = 1, objName = copied d
Enter testMethod0.
Enter Demo(int ival) ctor method,i = 0, objName = d in testMethod0
Exit testMethod0.
Enter Demo dector. method, i = 0, objName = d in testMethod0
Enter Demo(int ival) ctor method,i = 999, objName = d1
Enter testMethod2
Enter Demo(int ival) ctor method,i = 2, objName = d in testMethod2
Exit testMethod2.
d.i = 1
d1.i = -2
d2.i = 999
d3.i = 2
Enter Demo dector. method, i = 2, objName = d in testMethod2
Enter Demo dector. method, i = 999, objName = d1
Enter Demo dector. method, i = 1, objName = copied d
涓?/span>
C#
涓嶅悓錛屽湪
C++
涓紝瀵硅薄澹版槑鐨勬椂鍊欏氨宸茬粡鎵ц浜?jiǎn)鏋勯犲嚱鏁幫紝姣斿涓婇潰渚嬪瓙鐨?/span>
main
鍑芥暟涓殑絎竴琛岋紝
Demo d
錛屼粠灞忓箷涓婄殑杈撳嚭鏉ョ湅錛岃繖涓椂鍊?/span>
Demo class
鐨勯粯璁ゆ瀯閫犲嚱鏁頒細(xì)琚皟鐢ㄣ?/span>
鎺ヤ笅鏉ョ殑涓琛屼唬鐮佽皟鐢紝寮曞嚭浜?jiǎn)寰堟湁瓒ｇ殑鎯呭喌锛屽綋鐒朵篃闅愯棌鐫涓嶅皬鐨勯棶棰樸傝繖琛屼唬鐮侀犳垚浜?jiǎn)涓嬈℃瀯閫犲嚱鏁拌皟鐢紝涓嬈℃嫹璐濇瀯閫犲嚱鏁拌皟鐢ㄥ拰涓ゆ鏋愭瀯鍑芥暟璋冪敤銆傝鎴戜滑鏉ュ叿浣撳垎鏋愪竴涓嬶細(xì)絎竴嬈¤皟鐢ㄦ瀯閫犲嚱鏁板緢瀹規(guī)槗鐞嗚В錛屽洜涓哄湪
testMethod1
涓垜浠０鏄庝簡(jiǎn)
Demo d(0)
錛岄鍑?/span>
testMethod1
錛屽嚱鏁扮殑榪斿洖鍊艱璧嬪肩粰鍙橀噺
d2
錛岃繖涓椂鍊欙紝
d2
琚嫹璐濇瀯閫犲嚱鏁伴噸鏂版瀯閫犱簡(jiǎn)涓嬈°傛帴鐫
testMethod1
涓瀯閫犵殑灞閮ㄥ彉閲忚鏋愭瀯錛岀劧鍚庯紝灞呯劧鎷瘋礉鏋勯犲嚱鏁版瀯閫犵殑瀵硅薄涔熻鏋愭瀯錛熺瓑絳夛紝鐪嬪畬鎵鏈夎緭鍑猴紝鎴戜滑鍙戠幇錛?/span>
objName = copied d
鐨勫璞¤鏋愭瀯涓ゆ錛岃?/span>
objName = Default obj
鐨勫璞¤鏋勯犲嚭涔嬪悗娌℃湁琚瀽鏋勶紝榪欓噷闅愯棌浜?jiǎn)寰堜弗閲嶇殑闂锛屾湁鍙兘瀵艰嚧鍐呭瓨娉勬紡銆佸彞鏌勪笉鑳借姝ｇ‘鍏抽棴絳夌瓑銆傚彟澶栵紝鎷瘋礉鏋勯犲嚱鏁扮殑鎵ц鍙兘瀵艱嚧娼滃湪鐨勬晥鐜囬棶棰橈紝鑰冭檻涓涓寘鍚法澶х煩闃電殑瀵硅薄錛?/span>
copy
榪欎釜瀵硅薄浼?xì)鎬庝箞鏍鳳紵
鎺ヤ笅鏉ョ殑涓琛屼唬鐮侊紝
testMethod0
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testMethod0
閫鍑轟互鍚庯紝浠栧唴閮ㄧ殑
Demo
瀵硅薄灝變細(xì)鑷姩鏋愭瀯錛屽闈㈠瀹冪殑寮曠敤褰撶劧涔熸棤娉曟寚鍚戞紜殑瀵硅薄浜?jiǎn)锛屾墍浠ュ悗闈㈢▼搴忔墦鍗?/span>
d.i
鐨勬椂鍊欙紝杈撳嚭浜?jiǎn)涓涓帿鍚嶅叾濡欑殑
-2
銆?/span>
鏁堢巼鏈濂界殑鏂規(guī)硶褰撴暟榪斿洖鎸囬拡浜?jiǎn)锛屽畠涓嶄細(xì)瀵艰嚧瀵硅薄澶嶅堄灱屽鏋滀娇鐢ㄥ緱褰撳Q屼篃涓嶄細(xì)瀵艱嚧鍐呭瓨娉勬紡鎴栬呭彞鏌勬硠婕忋?/span>
testMethod2
婕旂ず浜?jiǎn)杩櫩U嶆儏鍐碉紝褰撶劧錛屼綘闇瑕佹墜宸ュ垹闄ゅ湪
testMethod2
涓垱寤虹殑瀵硅薄銆?/span>