C#变量引用与全局变量
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks; namespace Demo{ class Program { static void ShowDouble(ref int val) { val *= 2; Console.WriteLine("val doubled = {0}", val); } static void Main(string[] args) { int val = 5; Console.WriteLine("val = {0}", val); // 5 ShowDouble(ref val); // 同一个内存,10 Console.WriteLine("val = {0}", val); // 10 Console.ReadKey(); } } }using System;using System.Collections.Generic;using System.Linq;using Sy...