水一篇文章—-
很简单:)
关键点：
3.可使用malloc语句为字符数组进行动态内存分配
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| #include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
int i = 0;
printf("please input:\n");
char str[100];
fgets(str, sizeof(str), stdin);
while (str[i + 1])
{
if ((str[i] <= 'c' && str[i] >= 'a') || (str[i] <= 'C' && str[i] >= 'A'))
{
str[i] = str[i] + 23;
printf("%c", str[i]);
}
else if ((str[i] >= 'd' && str[i] <= 'z') || (str[i] >= 'D' && str[i] <= 'Z'))
{
printf("%c", str[i] - 3);
}
i++;
if (str[i] == (char)"\n")
{
break;
}
}
return 0;
}
|
