sample22.cs

C#函数手册

namespace apiBook
{
	using System;	
	using System.Reflection;
	public class TestClass
	{		
		public  TestClass(){}
		public  TestClass(char c){}
		static  TestClass(){}
		private TestClass(long l){}
		public  TestClass(string s){}
		public  TestClass(int i){}
		public static void Main()
		{
			Type testType=typeof(TestClass);
			ConstructorInfo[] con = testType.GetConstructors(BindingFlags.Public | BindingFlags.Static |
				BindingFlags.NonPublic | BindingFlags.Instance);
			//使用GetConstructors方法，获取该类中所有构造函数的信息
			Console.WriteLine("查看类TestClass有几个构造器，按先后次序列出哪些是公有的。");
			Console.WriteLine(con.Length);
			for (int i=0;i<con.Length;i++) 
			{
				Console.WriteLine(con[i].IsPublic);
			}
			Type[] typeArray = new Type[1];
			typeArray[0] = typeof(string);
			// Get the constructor that is public, instance method and takes an integer parameter.
			ConstructorInfo constructorInfo = testType.GetConstructor(BindingFlags.Instance|BindingFlags.Public,null,CallingConventions.HasThis, typeArray, null);
			//使用GetConstructor方法获取特定类型的构造器
			if(constructorInfo!= null)
			{
				Console.WriteLine("TestClass类的一个参数为字符串的公有构造器----"
					+constructorInfo.ToString());
			}		 
		}
	}
}