用法一 this代表当前类的实例对象
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namespace Demo{ public class Test { private string scope = "全局变量"; public string getResult() { string scope = "局部变量"; // this代表Test的实例对象 // 所以this.scope对应的是全局变量 // scope对应的是getResult方法内的局部变量 return this.scope + "-" + scope; } } class Program { static void Main(string[] args) { try { Test test = new Test(); Console.WriteLine(test.getResult()); } catch (Exception ex) { Console.WriteLine(ex); } finally { Console.ReadLine(); } } }} |
用法二 用this串联构造函数
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namespace Demo{ public class Test { public Test() { Console.WriteLine("无参构造函数"); } // this()对应无参构造方法Test() // 先执行Test()，后执行Test(string text) public Test(string text) : this() { Console.WriteLine(text); Console.WriteLine("有参构造函数"); } } class Program { static void Main(string[] args) { try { Test test = new Test("张三"); } catch (Exception ex) { Console.WriteLine(ex); } finally { Console.ReadLine(); } } }} |
