C#构造函数的执行顺序

using System;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            Class2 class2 = new Class2();
            Console.ReadKey();
        }
    }
    class Class2
    {
        static Class2()
        {
            Console.WriteLine("Using Static Method~");
        }
        public Class2():this(0)
        {
            Console.WriteLine("Using No Param Instance Method~");
        }
        public Class2(int str)
        {
            Console.WriteLine("Uing Param Instance Method~");
            Console.WriteLine(str);
        }
    }
}

OutPut：

Using Static Method~

Uing Param Instance Method~

0

Using No Param Instance Method~