a+=a-=a* a其中a=3

Question

Answer 1

【答案】 a = -12
【解析】：

运算符优先级，赋值运算符的优先级 从右到左计算
 a - = a*a   → a = a - a*a = 3 - 3*3 = -6
a +=a = a+a = -6 -6 = -12

#include<stdio.h>

int main(void) {
    int a = 3;
    a +=a-=a*a;
    printf("a=%d",a);
    return 0;
}