1 #include <stdio.h>
  2 #pragma pack(1)
  3
  4 struct a
  5 {
  6         unsigned char a:1;
  7         unsigned char b:2;
  8         unsigned char c:6;
  9 //      unsigned char d:4;
 10         unsigned char f;
 11         unsigned char g:4;
 12         unsigned long x;
 13
 14 }B;
 15
 16 int main(void)
 17 {
 18         printf("%d\n",sizeof(B));
 19
 20 }
~                                                                              
~答案是8？？？我觉得是9.。。请帮忙解答！                                                                              
~

额，肯定是8啊，你把d注释掉了，不然的话就是9了

不注释也是8.。。