1.参考地址:https://docs.microsoft.com/zh-cn/dotnet/csharp/tutorials/exploration/csharp-7?tutorial-step=5
https://docs.microsoft.com/zh-cn/dotnet/csharp/tutorials/exploration/csharp-6
2.新语法,实例
using System; namespace ConsoleApp1 { class Program { static void Main(string[] args) { //c# 新语法 //1.字符串内插 $的使用,代替string.format //Console.WriteLine("Hello World!"); //var name = "ligenyun"; //var str = $"hello world {name}"; //Console.WriteLine(str); //2.out 关键字变量,在使用的时候声明 //var t = "a1234"; //if(int.TryParse(t, out var r)) //{ // Console.WriteLine(r); //} //else //{ // Console.WriteLine("不是数字"); //} //3.本地函数 //Console.WriteLine(Test(11)); //string Test(int i) => i>2 ? "yes":"no"; //4.元组创建轻量级数据结构 //var t = (aaa : 1, bbb : 2); //Console.WriteLine(t.aaa); Console.Read(); } } }