C# 将 int 转换为布尔值的更好方法
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Better way to convert an int to a boolean
提问by DeepSea
The input intvalue only consist out of 1 or 0.
I can solve the problem by writing a if elsestatement.
输入int值只包含 1 或 0。我可以通过写一个if else语句来解决问题。
Isn't there a way to cast the intinto a boolean?
没有办法将 theint转换为 aboolean吗？
采纳答案by Corak
I assume 0means false(which is the case in a lot of programming languages). That means trueis not 0(some languages use -1some others use 1; doesn't hurt to be compatible to either). So assuming by "better" you mean less typing, you can just write:
我假设0意思false（在很多编程语言中都是这种情况）。这意味着true是not 0（有些语言使用-1一些其他人使用1;不伤害是兼容两种）。所以假设“更好”意味着更少的打字，你可以这样写：
bool boolValue = intValue != 0;
回答by Evelie
int i = 0;
bool b = Convert.ToBoolean(i);
回答by Rawling
Joking aside, if you're only expecting your input integer to be a zero or a one, you should really be checking that this is the case.
开玩笑，如果您只希望输入的整数是 0 或 1，那么您真的应该检查一下是否是这种情况。
int yourInteger = whatever;
bool yourBool;
switch (yourInteger)
{
case 0: yourBool = false; break;
case 1: yourBool = true; break;
default:
throw new InvalidOperationException("Integer value is not valid");
}
The out-of-the-box Convertwon't check this; nor will yourInteger (==|!=) (0|1).
开箱即用的Convert不会检查这个；也不会yourInteger (==|!=) (0|1)。
