标签 C# 数据类型 下的文章

从概念上看,值类型直接存储其值,而引用类型存储对其值的引用。这两种类型存储在内存的不同地方。在C#中,我们必须在设计类型的时候就决定类型实例的行为。这种决定非常重要,用《CLR via C#》作者Jeffrey Richter的话来 说,“不理解引用类型和值类型区别的程序员将会给代码引入诡异的bug和性能问题(I believe that a developer who misunderstands the difference between reference types and value types will introduce subtle bugs and performan...

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp1 { class BookClass { private string title; private string author; private string subject; private int book_id; ...

using System; namespace ConsoleApplication7 { class Program { static void Main(string[] args) { string str1 = "2023"; int num1 = 0; num1 = int.Parse(str1); Console.WriteLine(num1); //如果不能确定字符串是否可以转成数字,可以用int.TryPa...

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApp1 { class Program { static void Main(string[] args) { string ss = "abcdefg"; char[] cc = ss.ToCharArray(); ...