printf("Please enter a data with 4 digits\n"); scanf("%d",&k); i1 = k % 10; k = (k - i1) / 10; i2 = k % 10; k = (k - i2) / 10; i3 = k % 10; k = (k - i3) / 10; i4 = k; printf("%d-%d-%d-%d\n",i4,i3,i2,i1); //每两个数字字符间有“-” exit(0);
}
钢铁不是铁
2024-04-21 21:24:46
#include <stdio.h>
int main(void){ char ss[100]; scanf("%4s",ss); printf("%4s",ss); return 0; }