前言
迁移以前的笔记。
正文
只读属性初始化
static string Hello => @"Hello world , Lind!"; //static string Hello{get;}
属性初始化
static DateTime AddTime { get; set; } = DateTime.Now;
字典初始化
static Dictionary<string, string> dictionary1 = new Dictionary<string, string>
{
["name"] = "lind",
["age"] = "16"
};
string.Format,后台引入了$,而且支持智能提示
static string t2 = $"时间从{DateTime.Now}到{DateTime.Now.AddDays(1)}";
判断对象是否为空
static Test test = new Test();
static string title = test?.Name;//if(test!=null) title=test.Name;
空集合判断
static List
static Test defaultList = testList?[0];
箭头方法
public void ConsolePrint(string msg) => Console.WriteLine(msg);