C中的运算符优先级

#include <stdio.h>



main() {



   int a = 20;

   int b = 10;

   int c = 15;

   int d = 5;

   int e;



   e = (a + b) * c / d;      // ( 30 * 15 ) / 5

   printf("Value of (a + b) * c / d is : %d\n",  e );



   e = ((a + b) * c) / d;    // (30 * 15 ) / 5

   printf("Value of ((a + b) * c) / d is  : %d\n" ,  e );



   e = (a + b) * (c / d);   // (30) * (15/5)

   printf("Value of (a + b) * (c / d) is  : %d\n",  e );



   e = a + (b * c) / d;     //  20 + (150/5)

   printf("Value of a + (b * c) / d is  : %d\n" ,  e );



   return 0;

}