C# 中方法参数中params ，ref，out 方法的使用

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace RefAndOutAndParams
{
    class Program
    {
        /// <summary>
        /// 一个方法中可以动态传递多个参数的方法
        /// </summary>
        /// <param name="list"></param>
        public static void MyTestParams(params Object [] list){

            for (int i = 0; i < list.Length; i++) {
                Console.WriteLine(list[i]);
            }
        
        }
        /// <summary>
        /// 单个Ref的方法，方法中Ref传递的参数，在传递进方法之前，必须要有初始值，Ref相当于是一个变量的引用
        /// </summary>
        /// <param name="temp"></param>
        public static void MyTestRef(ref int temp) {

            temp = temp + 100;
        
        }
        /// <summary>
        /// 无Ref的方法，
        /// </summary>
        /// <param name="temp"></param>
        public static void NoRef(int temp) {
            temp = temp + 100;
        }
        public static void NoRefStr(string str) {

            str = "Tomfanxiaojun";
        }
        /// <summary>
        /// 多个Ref参数
        /// </summary>
        /// <param name="temp1"></param>
        /// <param name="temp2"></param>
        public static void MyTestRefs(ref int temp1, ref int temp2) {
            temp1 = temp1 + 1;
            temp2 = temp2 * 2;  
        }
        /// <summary>
        /// 单个的out参数的方法，该参数在传递这个方法之前，只要定义，不要赋初始值
        /// </summary>
        /// <param name="temp1"></param>
        /// <param name="a"></param>
        public static void MyTestOut(out int temp1,int a) {          
            temp1 = 9+a;  
        }
        public static void MyTestOuts(out int temp1,out int temp2, int a)
        {
            temp1 = 9 + a;
            temp2 = a * 9;
        }
        static void Main(string[] args)
        {
            //动态参数方法的调用
            MyTestParams("OK1", "OK2", 1);
            int a = 200;
            //正常方法的调用
            NoRef(a);
            Console.WriteLine(a);
            //单个Ref参数方法的调用
            MyTestRef(ref a);
            Console.WriteLine(a);
            MyTestRef(ref a);
            Console.WriteLine(a);

            int temp1 = 10;
            int temp2 = 20;
            MyTestRefs(ref temp1,ref temp2);
            Console.WriteLine(temp1);
            Console.WriteLine(temp2);

            int outvalue;
            MyTestOut(out outvalue, 12);
            Console.WriteLine(outvalue);
            int outvalue1,outvalue2;
            MyTestOuts(out outvalue1,out  outvalue2, 33);
            Console.WriteLine(outvalue1);
            Console.WriteLine(outvalue2);
            string str = "Jake";
            NoRefStr(str);
            Console.WriteLine(str);
            Console.ReadLine();
        }
    }
}