C#获取当前成员函数的函数名的几种常用方法

using System.Reflection;

public void MyMethod()
{
    string methodName = MethodBase.GetCurrentMethod().Name;
    Console.WriteLine(methodName); // 输出 "MyMethod"
}

public void MyMethod()
{
    Console.WriteLine(nameof(MyMethod)); // 输出 "MyMethod"
}

using System.Runtime.CompilerServices;

public void MyMethod()
{
    LogMethodName();
}

private void LogMethodName([CallerMemberName] string methodName = null)
{
    Console.WriteLine(methodName); // 输出 "MyMethod"
}

using System.Diagnostics;

public void MyMethod()
{
    var stackTrace = new StackTrace();
    var methodName = stackTrace.GetFrame(0).GetMethod().Name;
    Console.WriteLine(methodName); // 输出 "MyMethod"
}

using System.Linq.Expressions;

public void MyMethod()
{
    Console.WriteLine(GetMethodName(() => MyMethod()));
}

private string GetMethodName(Expression<Action> expression)
{
    return ((MethodCallExpression)expression.Body).Method.Name;
}

using System;
using System.Reflection;

class Program
{
    static void Main()
    {
        var demo = new Demo();
        demo.ShowMethodName();
    }
}

class Demo
{
    public void ShowMethodName()
    {
        // 方法1: nameof
        Console.WriteLine("nameof: " + nameof(ShowMethodName));

        // 方法2: 反射
        Console.WriteLine("Reflection: " + MethodBase.GetCurrentMethod().Name);
    }
}

nameof: ShowMethodName
Reflection: ShowMethodName