从键盘输入一篇英文学术文章的标题，要求不多于40个字符

Question

 

Answer 1

代码如下：

#include <stdio.h>
int main()
{
	char buf[40]={0};
	int i = 0;
	int A=0,a=0,nmb =0,other=0;
	printf("请输入英文标题:");
	gets(buf);
	while(buf[i] != '\0')
	{
		if(buf[i]>='a' && buf[i]<='z')
			a++;
		else if(buf[i]>='A' && buf[i]<='Z')
			A++;
		else if(buf[i]>='0' && buf[i]<='9')
			nmb++;
		else
			other++;
	}
	printf("大写字母%d个，小写字母%d个，数字%d个，其它字符%d个\n",A,a,nmb,other);
	return 0;
}