结构体中的位结构

 1 #include <stdio.h>
 2 
 3 typedef struct _lar{
 4     unsigned char ucA:1;
 5     unsigned char ucB:1;
 6     unsigned char ucC:2;
 7     unsigned char ucD:4;
 8 } Lar;
 9 
10 int main(int argc, char **argv)
11 {
12     Lar lar;
13     lar.ucA=1;
14     lar.ucB=0;
15     lar.ucC=0;
16     lar.ucD=4;
17     printf("%c\n", lar);
18 
19     lar.ucA=0;
20     lar.ucB=1;
21     lar.ucC=0;
22     lar.ucD=4;
23     printf("%c\n", lar);
24 
25     char ch = ‘A‘;
26     printf("%d\n", ch);
27 
28     ch >>= 1;
29     printf("%d\n", ch);
30 
31     ch <<= 3;                                                                     
32     printf("%d\n", ch);
33 
34     return 0;
35 }