我创建了一个程序,要求用户输入一些文本。程序然后在新行上输出每个字符,并说明该字母是元音还是标点符号。
我运行程序时遇到的问题 - 当它输出元音或标点符号的字母时,它会将它们打印两次。有人可以帮忙吗?将不胜感激。
代码:
int _tmain(int argc, _TCHAR* argv[])
{
char string[200];
char n1;
printf("Enter some text: \n");
while ((n1 = getchar()) != '\n') {
if (n1 == 'a' || n1 == 'e' || n1 == 'i' || n1 == 'o' || n1 == 'u')
printf("\b%c is a lowercase Vowel\n", n1);
else if (n1 == 'A' || n1 == 'E' || n1 == 'I' || n1 == 'O' || n1 == 'U')
printf("\b%c is a uppercase Vowel\n", n1);
if (ispunct(n1))
printf("%c is punctuation\n", n1);
printf("%c\n", n1);
}
return 0;
}
答案 0 :(得分:3)
此:
if (ispunct(n1))
printf("%c is punctuation\n", n1);
printf("%c\n", n1);
应该是:
else if (ispunct(n1))
printf("%c is punctuation\n", n1);
else
printf("%c\n", n1);