关于C# 5.0 CallerMemberName CallerFilePath CallerLineNumber 在.NET4中的使用介绍方法

.#define debug_msg printf("%s[%d]:",__FILE__,__LINE__);printf

new StackTrace(true).GetFrame(1).GetMethod().Name（注意，是功能相等，但实现不同，.NET4中是运行时获取，而C#5.0 中应该是编译时指定，原因参考以下）

public static void TraceMessage(string message,
        [CallerMemberName] string memberName = "",
        [CallerFilePath] string sourceFilePath = "",
        [CallerLineNumber] int sourceLineNumber = 0)
        {
            Trace.WriteLine("message: " + message);
            Trace.WriteLine("member name: " + memberName);
            Trace.WriteLine("source file path: " + sourceFilePath);
            Trace.WriteLine("source line number: " + sourceLineNumber);
        }

namespace System.Runtime.CompilerServices
{
    [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
    public class CallerMemberNameAttribute : Attribute { }

    [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
    public class CallerFilePathAttribute : Attribute { }

    [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false, Inherited = false)]
    public class CallerLineNumberAttribute : Attribute { }
}