用 || (或) 來判斷英文字母是否為母音

#include <stdio.h>

int main()

{

char ch;

printf("Enter a character\n");

scanf("%c", &ch);

if (ch == 'a' || ch == 'A' || ch == 'e' || ch == 'E' || ch == 'i' || ch == 'I' || ch =='o' || ch=='O' || ch == 'u' || ch == 'U') printf("%c is a vowel.\n", ch);

else

printf("%c is not a vowel.\n", ch);

return 0;

}

p.s.每次執行程式的時候,只能判斷一次,不能重複判斷

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