C# 语法糖 ver1

 1 //1.集合初始化器
 2 List<string> strs = new List<string> { "zhangsan", "lisi", "wangwu" };
 3 int[] numbers = { 1, 2, 8, 6, 9, 1 };
 4 
 5 //2.空合并运算符
 6 string InputName = null;
 7 InputName = "11";
 8 string name = InputName ?? "Unknown";
 9 
10 //3.条件访问运算符
11 string text = "Key";
12 int? length = text?.Length;
13 
14 //4.字符串插值
15 string name1 = "zhangsan";
16 int age = 30;
17 Console.WriteLine($"姓名：{name1},年龄：{age}");
18 
19 //5.Lambda表达式
20 List<int> list = new List<int> { 1, 2, 3, 4 };
21 var result = list.Where(x => x > 3 && x < 5);