问题描述
Cobra 编程语言有一个有用的功能，您可以在数字文字中使用下划线来提高可读性.例如，以下是等价的，但第二行更容易阅读:
The Cobra programming language has a useful feature where you can use underscores in numeric literals to improve readability. For example, the following are equivalent, but the second line is easier to read:
x = 1000000
x = 1_000_000 # obviously 1 million
C# 有什么等价的吗?
Is there anything equivalent for C#?
推荐答案
从 C# 7 开始回答
是的，这在 C# 7 中受支持.但请注意，没有验证您已将下划线放在正确的位置:
Yes, this is supported in C# 7. But be aware that there's no validation that you've put the underscores in the right place:
// At a glance, this may look like a billion, but we accidentally missed a 0.
int x = 1_00_000_000;
2011 年的回答
不，C# 中没有类似的东西.你可以这样做:
No, there's nothing like that in C#. You could do:
const int x = 1000 * 1000;
但这已经是最好的了.
(请注意，此增强功能已进入 Java7 也是……也许有一天它会在 C# 中引入.)
(Note that this enhancement went into Java 7 as well... maybe one day it will be introduced in C#.)
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