C# 如何让方法在类中调用另一个方法？
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How to make method call another one in classes?
提问by Mina Hafzalla
Now I have two classes allmethods.csand caller.cs.
现在我有两个类allmethods.cs和caller.cs.
I have some methods in class allmethods.cs. I want to write code in caller.csin order to call a certain method in the allmethodsclass.
我在课堂上有一些方法allmethods.cs。我想编写代码caller.cs以便调用类中的某个方法allmethods。
Example on code:
代码示例：
public class allmethods
public static void Method1()
{
// Method1
}
public static void Method2()
{
// Method2
}
class caller
{
public static void Main(string[] args)
{
// I want to write a code here to call Method2 for example from allmethods Class
}
}
How can I achieve that?
我怎样才能做到这一点？
采纳答案by p.s.w.g
Because the Method2is static, all you have to do is call like this:
因为Method2是静态的，你所要做的就是像这样调用：
public class AllMethods
{
public static void Method2()
{
// code here
}
}
class Caller
{
public static void Main(string[] args)
{
AllMethods.Method2();
}
}
If they are in different namespaces you will also need to add the namespace of AllMethodsto caller.cs in a usingstatement.
如果它们在不同的命名空间中，您还需要AllMethods在using语句中将 的命名空间添加到 caller.cs 。
If you wanted to call an instance method (non-static), you'd need an instance of the class to call the method on. For example:
如果你想调用一个实例方法（非静态），你需要一个类的实例来调用该方法。例如：
public class MyClass
{
public void InstanceMethod()
{
// ...
}
}
public static void Main(string[] args)
{
var instance = new MyClass();
instance.InstanceMethod();
}
Update
更新
As of C# 6, you can now also achieve this with using staticdirective to call static methods somewhat more gracefully, for example:
从 C# 6 开始，您现在还可以使用using static指令来实现这一点，以更优雅地调用静态方法，例如：
// AllMethods.cs
namespace Some.Namespace
{
public class AllMethods
{
public static void Method2()
{
// code here
}
}
}
// Caller.cs
using static Some.Namespace.AllMethods;
namespace Other.Namespace
{
class Caller
{
public static void Main(string[] args)
{
Method2(); // No need to mention AllMethods here
}
}
}
Further Reading
进一步阅读
