C语言程序设计-谭浩强习题

6.请编程序将"China"译成密码，密码规律是：用原来的字母后面第4个字母代替原来的字母。例如：字母“A”后面第4个字母时"E"，用"E"代替"A"。因此，“China"应译为"Glmre”。请编一程序，用赋初值的方法使c1, c2, c3, c4, c5这5个变量的值分别为’C’, ‘h’, ‘i’, ‘n’, ‘a’, 经过运算，使c1, c2, c3, c4, c5分别为’G’, ‘l’, ‘m’, ‘r’, ‘e’。分别用putchar函数和printf函数输出这个5个字符。

#include<stdio.h>
int main()
{
char c1, c2, c3, c4, c5;
c1 = 'C';
c2 = 'h';
c3 = 'i';
c4 = 'n';
c5 = 'a';
c1 += 4;
c2 += 4;
c3 += 4;
c4 += 4;
c5 += 4;
printf("%c%c%c%c%c\n", c1, c2, c3, c4, c5);
putchar(c1);
putchar(c2);
putchar(c3);
putchar(c4);
putchar(c5);
return 0;
}