C语言赋值运算符

#include <stdio.h>

main() {

   int a = 21;
   int c ;

   c =  a;
   printf("line 1 - =  Operator Example, Value of c = %d\n", c );

   c +=  a;
   printf("line 2 - += Operator Example, Value of c = %d\n", c );

   c -=  a;
   printf("line 3 - -= Operator Example, Value of c = %d\n", c );

   c *=  a;
   printf("line 4 - *= Operator Example, Value of c = %d\n", c );

   c /=  a;
   printf("line 5 - /= Operator Example, Value of c = %d\n", c );

   c  = 200;
   c %=  a;
   printf("line 6 - %= Operator Example, Value of c = %d\n", c );

   c <<=  2;
   printf("line 7 - <<= Operator Example, Value of c = %d\n", c );

   c >>=  2;
   printf("line 8 - >>= Operator Example, Value of c = %d\n", c );

   c &=  2;
   printf("line 9 - &= Operator Example, Value of c = %d\n", c );

   c ^=  2;
   printf("line 10 - ^= Operator Example, Value of c = %d\n", c );

   c |=  2;
   printf("line 11 - |= Operator Example, Value of c = %d\n", c );

}