C#获取系统时间,非DateTime方法

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.IO;

using System.Windows.Forms;

namespace getTmie

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

DateTime MaxDateTime;

private void btngetTmie_Click(object sender, EventArgs e)

{

try

{

string pathtext = System.Environment.GetEnvironmentVariable("TEMP").Trim();

if (pathtext == null || pathtext.Equals(""))

{

//MessageBox.Show("路径不能为空", "错误");

}

else

{

//得到文件名

string[] filename = Directory.GetFiles(pathtext);

foreach (string file in filename)

{

//得到文件的创建时间

DateTime CreationTime = File.GetCreationTime(file);

if (CreationTime > MaxDateTime)

{

MaxDateTime = CreationTime;

}

}

//进行二个文件夹验证

pathtext = System.Environment.GetEnvironmentVariable("WINDIR").Trim();

filename = Directory.GetFiles(pathtext);

foreach (string file in filename)

{

//得到文件的创建时间

DateTime CreationTime = File.GetCreationTime(file);

if (CreationTime > MaxDateTime)

{

MaxDateTime = CreationTime;

}

}

//进行三个文件夹验证

pathtext = System.Environment.GetEnvironmentVariable("WINDIR").Trim() + "/Temp";

filename = Directory.GetFiles(pathtext);

foreach (string file in filename)

{

//得到文件的创建时间

DateTime CreationTime = File.GetCreationTime(file);

if (CreationTime > MaxDateTime)

{

MaxDateTime = CreationTime;

}

}

//第四个文件夹

pathtext = System.Environment.SystemDirectory.Trim();

filename = Directory.GetFiles(pathtext);

foreach (string file in filename)

{

//得到文件的创建时间

DateTime CreationTime = File.GetCreationTime(file);

if (CreationTime > MaxDateTime)

{

MaxDateTime = CreationTime;

}

}

MessageBox.Show(MaxDateTime.ToString());

//这里是输出时间，自己看，在软件中应该和指定的时间进行比较

}

}

catch

{

//MessageBox.Show("请检查路径是否正确", "系统提示");

}

}

}

}