solve , Why? y The value of the or 3？
#include<stdio.h>int main(){ int x = 2, y = 3, a; a = (!x-- && --y) ? 2 : 3; printf("x=%d,y=%d,a=%d", x, y, a); return 0;}
Refer to the answer 1：
(!x-- && --y), Here because !x = 0 ,0 && --y Short circuit effect ,--y It's not going to work .
Refer to the answer 2：
Refer to the answer 3：
! High priority ,!x=0 了
Refer to the answer 4：
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