创建新项目

新增控制器类文件

using Microsoft.AspNetCore.Mvc;using System.Text.Encodings.Web;namespace MvcMovie.Controllers{public class HelloWorldController : Controller{// // GET: /HelloWorld/public string Index(){return "返回字符串方法定义测试 成功输出数据值内容This is my default action...";}// // GET: /HelloWorld/Welcome/ public string Welcome(string name,int numTimes = 1){return HtmlEncoder.Default.Encode($"Hello {name},NumTimes is{numTimes}");}public string Welcome1(string name, int ID = 1){return HtmlEncoder.Default.Encode($"zifuchuan mingzi {name}, ID: {ID}");}// GET: /HelloWorld/Lh/ public string