#define _CRT_SECURE_NO_WARNINGS 1 #include<stdio.h> int main() { //多组输入,每一行输入大写字母 A B //针对输入,输出对应的小写字母 a b //只能调整一个字符 //int ch = getchar(); //ch = ch + 32; //putchar(ch); int ch = 0; while ((ch = getchar()) != EOF) { printf("%c\n", ch + 32); getchar();//清理'\n' } return 0; }
#define _CRT_SECURE_NO_WARNINGS 1 #include<stdio.h> int main() { char password[20] = { 0 }; printf("请输入密码:>"); scanf("%s", password); printf("请输入(Y/N):>"); getchar(); //拿走'\n' int ch = getchar(); if (ch == 'Y') { printf("确认成功\n"); } else printf("放弃确认\n"); return 0; }