出来发表声明 [英] Out put for a statement

问题描述

int a=29;
a--;
//what is the out put of 'a' here and how?
a-=++a;
//what is the out put of 'a' here and how?

请解释任何一个，


感谢提前

Please explain any one ,

Thanks for advance

推荐答案

，首先你的输出将是28



因为你的a会在行执行完成后减少



而在第二种情况下你的输出将是



-1

因为按照优先顺序（从右到左）

将进行第一次增量操作然后

将进行减法操作。

a = a - ++ a

in first can your output will be 28

because your a will get decremented after line execution completes

and in second case your output will be

-1
because as per precedence (right to left)
first increment operation will be carried out and then
substraction operation will be carried out.
a= a - ++a

这篇关于出来发表声明的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！