本文介绍了如何使用条件运算符?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我一直想知道如何用C ++兼容的语言编写 我认为它的工作类似:(伪代码)A?B:C
如果A> B
C = A
Else
C = B
解决方案
它的工作原理是这样的:
(条件)? true-clause:false-clause
它最常用于赋值操作,好。三元运算符?
是缩短if-else子句的一种方法,也称为其他语言的立即if语句( IIf ,true-clause,false-clause)
在VB中,例如)。
例如:
bool Three = SOME_VALUE;
int x =三? 3:0;
与
相同 bool Three = SOME_VALUE;
int x;
if(Three)
x = 3;
else
x = 0;
I've always wondered how to write the "A ? B : C"
syntax in a C++ compatible language.
I think it works something like: (Pseudo code)
If A > B
C = A
Else
C = B
Will any veteran C++ programmer please help me out?
解决方案
It works like this:
(condition) ? true-clause : false-clause
It's most commonly used in assignment operations, although it has other uses as well. The ternary operator ?
is a way of shortening an if-else clause, and is also called an immediate-if statement in other languages (IIf(condition,true-clause,false-clause)
in VB, for example).
For example:
bool Three = SOME_VALUE;
int x = Three ? 3 : 0;
is the same as
bool Three = SOME_VALUE;
int x;
if (Three)
x = 3;
else
x = 0;
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