程序代码：

  1 #include <stdio.h>
  2 #include <stdlib.h>
  3 #include <string.h>
  4 static const char *msg[] = {"sunday", "monday", "tuesday", "wednesday",
  5                               "thursday", "friday", "saturday"};
  6 char *get_a_day(int index)
  7 {
  8       static char buf[20];
  9       strcpy(buf, msg[index]);

 10       return buf; 

 11 }     

 12 

 13 int main(int argc, const char *argv[])

 14 {

 15       printf("%s, %s\n", get_a_day(0), get_a_day(1));

 16       printf("%s, %s, %s\n", get_a_day(2), get_a_day(3), get_a_day(4));

 17       

 18       return 0;

 19 }