系统执行下列程序后为什么C会变成0,而不是2啊!
#include "iostream.h"
void main()
{
   int t,a,b,c;
   a=1;b=2;c=2;
   while(a<b<c){
       t=a;
       a=b;
       b=t;
       c--;
   }
   cout<<a<<","<<b<<","<<c;
}