C#赋值运算符

using System;

namespace OperatorsAppl {

   class Program {

      static voID Main(string[] args) {
         int a = 21;
         int c;
         c = a;
         Console.Writeline("line 1 - =  Value of c = {0}", c);

         c += a;
         Console.Writeline("line 2 - += Value of c = {0}", c);

         c -= a;
         Console.Writeline("line 3 - -=  Value of c = {0}", c);

         c *= a;
         Console.Writeline("line 4 - *=  Value of c = {0}", c);

         c /= a;
         Console.Writeline("line 5 - /=  Value of c = {0}", c);

         c = 200;
         c %= a;
         Console.Writeline("line 6 - %=  Value of c = {0}", c);

         c <<= 2;
         Console.Writeline("line 7 - <<=  Value of c = {0}", c);

         c >>= 2;
         Console.Writeline("line 8 - >>=  Value of c = {0}", c);

         c &= 2;
         Console.Writeline("line 9 - &=  Value of c = {0}", c);

         c ^= 2;
         Console.Writeline("line 10 - ^=  Value of c = {0}", c);

         c |= 2;
         Console.Writeline("line 11 - |=  Value of c = {0}", c);
         Console.Readline();
      }
   }
}