static StaticGouZhaoHanShu()//CLR static静态机制，当程序启动时肯定会被创建且只创建一次
{
_LockMethod = new StaticGouZhaoHanShu();
}
static void Main(string[] args)
{
Console.WriteLine("我是第1种lock的方式**********Begin********");
//多线程调用
List <Task> tasklist = new List <Task>();
TaskFactory tf = new TaskFactory();
for (int i = 0; i < 10; i++)
{
tasklist.Add(tf.StartNew(() => LockMethod.GetInstance().PrintHello()));
}
Task.WaitAll(tasklist.ToArray());
Console.WriteLine("我是第1种lock的方式**********End********");
Console.WriteLine("我是第2种StaticGouZhaoHanShu的方式**********Begin********");
//多线程调用
List <Task> tasklist2 = new List <Task>();
TaskFactory tf2 = new TaskFactory();
for (int i = 0; i < 10; i++)
{
tasklist2.Add(tf2.StartNew(() => StaticGouZhaoHanShu.GetInstance().PrintHello()));
}
Task.WaitAll(tasklist2.ToArray());
Console.WriteLine("我是第2种StaticGouZhaoHanShu的方式**********End********");
Console.WriteLine("我是第3种StaticBianLiang的方式**********Begin********");
//多线程调用
List <Task> tasklist3 = new List <Task>();
TaskFactory tf3 = new TaskFactory();
for (int i = 0; i < 10; i++)
{
tasklist3.Add(tf3.StartNew(() => StaticBianLiang.GetInstance().PrintHello()));
}
Task.WaitAll(tasklist3.ToArray());
Console.WriteLine("我是第3种StaticBianLiang的方式**********End********");
//如果是web项目 可以在globle的application_start()方法中直接创建一个普通的类的对象也可以
DateTime now = DateTime.Now;
DateTime StopDate = Convert.ToDateTime("2017-6-1 00:00:00");
for (DateTime m = new DateTime(now.Year, now.Month, now.Day, 0, 0, 0); m >= StopDate; m = m.AddDays(-10))
{
if (m.AddDays(-10) < StopDate)
{
Console.WriteLine("{0},{1}", StopDate.ToString("yyyy-MM-dd HH:mm:ss"), m.ToString("yyyy-MM-dd HH:mm:ss"));
}
else
{
Console.WriteLine("{0},{1}", m.AddDays(-10).ToString("yyyy-MM-dd HH:mm:ss"), m.ToString("yyyy-MM-dd HH:mm:ss"));
}
}
//string s = "12222";
//string[] sarr = s.Split(',');
//List<string> LI = new List<string> { "1", "23", "3" };
//string ss = LI.FirstOrDefault(f => sarr.Contains(f)) ?? "11111111111111111";
//Console.WriteLine(ss);
//LI = LI.Where(w => w == "4").ToList();
//string aaa= LI.FirstOrDefault(w => w == "4");
//for (int i = 0; i < LI.Count; i++)
//{
// Console.WriteLine(LI[i]);
//}
//List<string> list = new List<string> {"fdasfdsa","ee222","3445","fr5","7y" };
//list = list.Skip(2).ToList();
//string str = string.Format("where name in ({0})",string.Join("','",list));
//str = str.Replace("(", "('").Replace(")","')");
//Console.WriteLine(str);
//var taskList = new List<Task>();
//var excutelist = new List<int>();
//Parallel.For(0, 100, a =>show(a,1));
//Parallel.For(0, 3, b => Parallel.For(0, 9, a => show(a, b)));
int x = 1, y = 2, z = 3;
//var res = --ii + jj++;
Console.WriteLine("y＋＝z－－/＋＋x,结果是{0}", y += z-- / ++x);
Console.ReadKey();
}
