Question

一道c语言题目

我这样写哪里错了..好像是输入a的时候把a也算进循环里去了。

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Answer 1

帮你写了一个，改你的代码改的心累
#include <stdio.h>
#include <string.h>

#define N 100

int main(void)
{
char str[N];
char letter;
int n, i = 0;
int count1, count2, count3;

scanf ("%d", &n);
getchar();//读取一个换行

while (n > 0)
{
count1 = 0;
count2 = 0;
count3 = 0;
i = 0;

gets(str);//输入字符串

for (i = 0; str[i] != '\0'; i++)//循环遍历字符串
{
if (str[i] >= 'a' && str[i] <= 'z')
count1++;
else if (str[i] >= 'A' && str[i] <= 'Z')
count2++;
else if (str[i] >= '0' && str[i] <= '9')
count3++;
}
printf ("小写：%d\n大写：%d\n数字：%d\n", count1, count2, count3);
n--;
}
return 0;
}