相关疑难解决方法(0)

#include <iostream>

using namespace std;

int main()
{
   cout << "sizeof(unsigned int): " << sizeof(unsigned int) << endl; 
   unsigned a = 1;
   int i = 0;
   while (a) {         
        cout << "a[" << i++ << "]: " << a << endl;        
        a <<= 1;
   }

   cout << "a[" << i << "]: " << a << endl;

   unsigned b = 1;
   unsigned c = (b << 31);
   unsigned d = (b << 32);

   cout << "c: " << c << …