八进制、十六进制字符

 1 #include <stdio.h>
 2 
 3 int  main(void)
 4 {
 5     int a = ‘\101‘;
 6     int b = ‘\0101‘;    // 错误
 7     int c = ‘\x41‘;
 8     int d = ‘\X41‘;     // 错误
 9     printf("%d %c\n", a, a);
10     printf("%d %c\n", b, b);
11     printf("%d %c\n", c, c);
12     printf("%d %c\n", d, d);
13     
14     return 0;
15 }
16