演示非法输入

程序员成长之旅 · 程序员成长之旅/C语言/别人的源码 · 99 字

Ubuntu PastebinPaste from 判断非法输入 at Thu, 7 Dec 2017 14:38:59 +0000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27	#include `<stdio.h>` int main(void) { int a = 0; while(1) { int flag = 0; printf("please input an integer\n"); flag = scanf("%d", &a); if(flag == 1) { printf("valid input\n"); } else { printf("Invalid input\n"); } char c = 0; while((c = getchar() )!= EOF && c != '\n'); } }