什么结肠在C呢？ [英] what does the colon do in c?

问题描述

我得到在课堂这个例子中，我不确定它做什么。据我所知，结肠增添了几分场，但我仍然不确定这个问题：

  A = B＆GT; 0？ 3：1;
 

解决方案

：运算符称为条件运算符

如果 B 值为＆GT; 0 ，该值 3 分配给 A 其他值 1 分配给 A 。

把你Kernighan的＆放大器;里奇书第二版，2.11章有条件前pressions，操作者的行为进行说明。

I was given this example in class and I am unsure what it does. I understand the colon adds a bit-field, but I am still uncertain about this question:

    a = b > 0 ? 3:1;

解决方案

?: operator is called the conditional operator.

If b value is > 0, the value 3 is assigned to a else the value 1 is assigned to a.

Take your Kernighan & Ritchie book 2nd edition, chapter 2.11 Conditional expressions, the behavior of the operator is explained.

这篇关于什么结肠在C呢？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！