C# 布尔语法（常用和常用）

我想知道你们喜欢使用哪种布尔语法方法，我在学习编程的时候有一些布尔语法，直到现在

以下是一些案例：

声明变量

protected bool someBoolean = false;

案例1:

if (someBoolean  == true)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean == true)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

案例2:

if (someBoolean  == true)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean == true)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

案例3:

if (someBoolean  == true)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean == true)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

案例4:

if (someBoolean  == true)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean == true)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

案例5:

if (someBoolean  == true)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (someBoolean == false)
{
   // The Boolean is not being triggered
}

if (someBoolean == true)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else
{
  // The Boolean is not being triggered
}

if (someBoolean)
{
   // Do something, it is being triggered
}

else if (!someBoolean) // Same with someBoolean == false
{
  // The Boolean is not being triggered
}

在处理布尔运算时，你们更喜欢上面哪一种（或多种）情况，并且主要用于编程方法？请提供并给出一些（或更多）原因，说明您为什么选择该选项而不是其他选项？：）

---

对我来说，我更有信心使用案例5，因为它使我的代码看起来很漂亮（就我的想法而言）

如果{}其他{}，我宁愿避免

condition ? first_expression : second_expression;  

就你而言

someboolean ? expression 1 : expression2;     

---

否则将与案例4一起使用。其中，如果someboolean为false，则代码将命中else，无需在此检查它是否为false。在这种情况下，您需要减少一些额外的代码来检查值，如果someboolen不为true，则根本不需要检查值，这意味着它为false

我总是喜欢案例4，因为它对我来说是最干净的。我非常怀疑这些之间有一个不平凡的性能差异，所以我只想看任何看起来更好的。我是C++程序员，所以可能的约定是不同的，但是我更喜欢案例4。格式更短、更简单（无需重写变量名称或第二个条件测试），这在我看来更优雅。如果我使用复杂的表达式，也不太可能意外地使

if

和

else

条件相同。@ryrich:它们都编译成相同的代码。它们之间没有性能差异。谢谢你们的回答！我真的很感激。你不能只写

一些布尔？DoSomething（）：DoSomethingElse（）

[conditional operator]（）要求两个表达式的计算结果为同一类型。此外，您必须将结果分配给某个对象。例如，请参阅答案，以感谢您的回答！我真的很感激。是的，先生，谢谢你纠正我。三元运算符带有一些约束，比如您需要指定结果，两个表达式计算相同的类型，但我想提到的是，三元运算符非常方便，可以避免使用if-else。这就是为什么我提到了案例4。