#include<stdio.h> void cpy(char s[], char c[]) { int i, j; for (i = 0, j = 0; s[i] != '\0'; i++) { //判断元音字母 if (s[i] == 'a' || s[i] == 'A' || s[i] == 'e' || s[i] == 'E' || s[i] == 'i' ||s[i] == 'I' || s[i] == 'o' || s[i] == 'O' || s[i] == 'u' || s[i] == 'U') { c[j] = s[i]; j++; } } c[j] = '\0'; } int main() { char str[80], c[80]; gets(str); cpy(str, c); //将str中的元音字母拷贝到c中 printf("%s", c); return 0; }