输入一个四位数，分离各个位的数字(若是三位数x1=0，若是四位数x1就大于10)
#include(stdio.h)void main()
{
int a,x1,x2,x3;
printf("input a");
scanf("%d",&a);
if((a<=999)&&(a>=10000))
printf("N")
else
{
x1=a/1000;
x2=(a-x1*1000)/100;
x3=(a-x1*1000-x2*100)/10
x4=a%10;
}
}
2010-10-26 10:06
