程序運行截圖如下：

源碼如下：

#include <cstdio>#define A 0x00000001 #define B 0x00000100 #define C 0x00010000 #define D 0x01000000#define E 0x00000001#define AorB A&Bvoid main() {int valueA = AorB;printf("valueA is 0x%08x\n", valueA);int valueB = A | B;printf("valueB is 0x%08x\n", valueB);int valueC = B | C | D;printf("valueC is 0x%08x\n", valueC);int valueD = A | C | D;printf("valueD is 0x%08x\n", valueD);if (valueA&E) {printf("valueA&E is successful!\n");}else {printf("valueA&E is failed!\n");}if (valueB&E) {printf("valueB&E is successful!\n");}else {printf("valueB&E is failed!\n");}if (valueC&E) {printf("valueC&E is successful!\n");}else {printf("valueC&E is failed!\n");}if (valueD&E) {printf("valueD&E is successful!\n");}else {printf("valueD&E is failed!\n");}getchar(); }

?

總結：一般用于帶有status或flag這些地方，比如一個窗口包含了3種狀態（這時候可以用'|"），當想判斷這一群狀態里面是否還有某一狀態時這個時候就可以用“&”

總結

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