C++箭头操作符 C++中，箭头操作符“->”怎样使用？
C++\u4e2d\uff0c\u7bad\u5934\u64cd\u4f5c\u7b26\u201cprintf( "%d, %d, %d.\n", p->a, p->b, ++p->c );\u8fd9\u53e5\u6539\u6210
printf( "%d, %d, %d.\n", p->a, p->b, (++p)->c );
\u56e0\u4e3a->\u6bd4\u524d\u7f00++\u4f18\u5148\u7ea7\u9ad8\uff0c++\u7684\u5bf9\u8c61\u662fp->c\u4e5f\u5c31\u662f3\uff0c\u800c\u4e0d\u662fp\u6307\u9488\u3002
\u7bad\u5934\u64cd\u4f5c\u7b26\u201c->\u201d\u7528\u6765\u5f15\u7528\u6307\u9488\u5bf9\u8c61\u3002\u8fd9\u662f\u662f\u7528\u4e8e\u7c7b\uff0c\u6216\u8005\u662f\u7ed3\u6784\u4f53\u7684\u6307\u9488\u53d8\u91cf\u7528\u7684\u3002 \u5982struct Point {int x,y;};Point *pt=new Point;pt->x=1;
\u4e3e\u4f8b\u5b50\u8bf4\u660e\u4e00\u4e0b\uff1a\u6bd4\u5982\uff0c\u6211\u6709\u4e00\u4e2a\u5bf9\u8c61darkray\u3002\u90a3\u4e48\u6211\u53ef\u4ee5\u901a\u8fc7\u201d.\u201d\u6765\u8c03\u7528darkray\u7c7b\u4e2d\u4e2d\u7684\u6210\u5458\u53d8\u91cf\u3002\u4f46\u662f\u5982\u679cdarkray\u662f\u6307\u9488\u7684\u8bdd\uff0c\u5c31\u4e0d\u80fd\u901a\u8fc7\u201d.\u201d\u6765\u8c03\u7528\uff0c\u800c\u53ea\u80fd\u4f7f\u7528\u201d->\u201d\u6765\u8c03\u7528\u4e86\u3002\u653e\u5230C\u8bed\u8a00\u4e2d\u4e0d\u5b58\u5728\u5bf9\u8c61\u7684\u6982\u5ff5\u7684\u3002\u70b9\u64cd\u4f5c\u7b26\u7528\u5f97\u5230\u7684\u5730\u65b9\uff0c\u5927\u591a\u5728\u7ed3\u6784\uff0c\u6bd4\u5982\uff1astruct darkray{float coder;int geek;};\u5728\u7a0b\u5e8f\u4e2ddarkray fuckyou={2.3,350};
\u5c31\u53ef\u4ee5\u7528fuckyou.coder\u6765\u53d6\u5f97\u7ed3\u6784\u4e2d\u7684\u503c\u3002\u8fd9\u65f6\u662f\u4e0d\u80fd\u4f7f\u7528\u201d->\u201d\u6765\u8c03\u7528\u7684\uff0c\u201d->\u201d\u7b26\u53f7\u6307\u9488\u5bf9\u6307\u9488\u6765\u8bf4\u7684\u3002\u53ea\u6709\u5728\u5982\u4e0b\u60c5\u51b5\u53ef\u4ee5\u4f7f\u7528\u201d->\u201ddarkray* fuckme;fuckme->coder=2.33;\u6b64\u65f6fuckme\u4e3a\u4e00\u4e2adarkray\u7ed3\u6784\u7684\u5730\u5740\u6307\u9488\u3002\u6240\u4ee5\u53ef\u4ee5\u4f7f\u7528\u201d->\u201d,\u800c\u6b64\u65f6\u5c31\u4e0d\u80fd\u4f7f\u7528\u201c.\u201d\u6765\u64cd\u4f5c\u3002\u56e0\u4e3a\u201d.\u201d \u201c\u76f8\u5f53\u4e8e\u201d\u5bf9\u8c61\u7684\u6210\u5458\u8c03\u7528\u3002
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绛旓細->鏄绠ご鎿嶄綔绗 T->lchild 涓 (*T).lchild 绛夋晥 鐢ㄥ悗涓绉嶆柟寮忥紝瀹规槗蹇樿鍦嗘嫭鍙疯岄犳垚閿欒锛屾墍浠ュ氨瀹氫箟浜 -> 鎿嶄綔绗︺
绛旓細鏄->鎿嶄綔绗锛屼綔鐢ㄧ浉褰撲簬.鎿嶄綔绗︼紝瀵圭粨鏋勪綋鎸囬拡閫傜敤 绛変环浜 (*鎸囬拡).鎴愬憳 include <stdio.h> typedef struct {int x,y;} POINT,*PPOINT;POINT a;int main(){ PPOINT b=&a;a.x=4; // 涓嶈兘鐢 a->x printf("a.x=%d\n",a.x);b->x=5; // 涓嶈兘鐢 b.x printf("a.x=%d\n...
绛旓細绗﹀彿.鐨勪紭鍏堢骇姣*楂橈紝浣犵敤*p.name绛変簬鏄*(p.name)鑰宲鏈韩鏄竴涓寚閽堬紝璇ヨ繍绠楀熀鏈病鏈夋剰涔夈傝嫢瑕佺敤杩欎袱涓鍙凤紝闇瑕佺敤(*p).name鏍煎紡锛屽叾瀹->绗﹀彿灏辨槸灏嗚繖涓綔鐢ㄧ缉鍐欑殑銆
