PowerShell 中的三元运算符 [英] Ternary operator in PowerShell

问题描述

据我所知，PowerShell 似乎没有所谓的三元运算符<的内置表达式/a>.

From what I know, PowerShell doesn't seem to have a built-in expression for the so-called ternary operator.

例如，在支持三元运算符的 C 语言中，我可以这样写:

For example, in the C language, which supports the ternary operator, I could write something like:

<condition> ? <condition-is-true> : <condition-is-false>;

如果这在 PowerShell 中并不存在，那么实现相同结果的最佳方法是什么(即易于阅读和维护)?

If that doesn't really exist in PowerShell, what would be the best way (i.e. easy to read and to maintain) to accomplish the same result?

推荐答案

$result = If ($condition) {"true"} Else {"false"}

其他一切都是偶然的复杂性，因此应该避免.

Everything else is incidental complexity and thus to be avoided.

要在表达式中使用或用作表达式，而不仅仅是赋值，请将其包装在 $() 中，因此:

For use in or as an expression, not just an assignment, wrap it in $(), thus:

write-host  $(If ($condition) {"true"} Else {"false"}) 

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