柚子快报激活码778899分享：开发语言 C#使用计时器
目录
1.Timer使用
2.System.Timers.Timer使用
3.System.Threading.Timer使用
4.DispatcherTimer使用
c#中计时器有4种：
Timer timer = new Timer()，控件System.Timers.Timer timer2 = new System.Timers.Timer();代码System.Threading.Timer threadTimer = new System.Threading.Timer( ); 代码DispatcherTimer dispatcherTimer = new DispatcherTimer();代码
winform中可以使用的是：123
WPF中可以使用的是：234
其中23都不依赖窗体
1.Timer使用
可以在winform中的工具栏中直接拖一个控件
也可以在代码中自己new一个
代码：
记得使用using
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Timer timer = new Timer();
public int a = 0;
private void button1_Click(object sender, EventArgs e)
{
timer.Start();
timer.Tick += Timer_Tick;
}
private void Timer_Tick(object sender, EventArgs e)
{
a++;
label1.Text = a.ToString();
}
private void Form1_Load(object sender, EventArgs e)
{
timer.Enabled = true;
timer.Interval = 1000;
}
}
}
2.System.Timers.Timer使用
2种方式
第一种：使用SynchronizingObject，和上面的用法一样，单线程方式。
代码
记得使用using
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
System.Timers.Timer timer = new System.Timers.Timer();
public int a = 0;
private void button1_Click(object sender, EventArgs e)
{
timer.Start();
timer.Elapsed += Timer_Elapsed;
}
private void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
a++;
label1.Text = a.ToString();
}
private void Form1_Load(object sender, EventArgs e)
{
timer.Enabled = true;
timer.Interval = 1000;
timer.SynchronizingObject = this;
}
}
}
第二种，不使用SynchronizingObject，多线程方式。
代码
记得使用using
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
System.Timers.Timer timer = new System.Timers.Timer();
delegate void SetTextCallback(string text); //委托
public int a = 0;
private void button1_Click(object sender, EventArgs e)
{
timer.Start();
timer.Elapsed += Timer_Elapsed;
}
private void Timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
a++;
SetTextCallback deg = new SetTextCallback(SetText);
this.Invoke(deg, new object[] { a.ToString() }); //委托传值
}
private void Form1_Load(object sender, EventArgs e)
{
timer.Enabled = true;
timer.Interval = 1000;
}
private void SetText(string text)
{
label1.Text = text;
}
}
}
3.System.Threading.Timer使用
代码
记得使用using
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
System.Threading.Timer timer = null;
delegate void SetTextCallback(string text); //委托
public int a = 0;
private void button1_Click(object sender, EventArgs e)
{
//立即开始计时，时间间隔1000毫秒:
timer.Change(0, 1000);
//停止计时:
//timer.Change(Timeout.Infinite, 1000);
//暂停计时：
//timer.Change(-1, -1);
}
private void Form1_Load(object sender, EventArgs e)
{
timer = new System.Threading.Timer(new System.Threading.TimerCallback(ThreadMethod), null, -1, -1); //最后两个参数依次为：多久后开始，隔多久执行一次。
}
public void ThreadMethod(Object state)
{
a++;
SetTextCallback deg = new SetTextCallback(SetText);
this.Invoke(deg, new object[] { a.ToString() }); //委托传值
}
private void SetText(string text)
{
label1.Text = text;
}
}
}
4.DispatcherTimer使用
DispatcherTimer只有wpf才能使用，和winform中的timer差不多。
记得使用using
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
namespace WpfApp2
{
///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
int a = 0;
public MainWindow()
{
InitializeComponent();
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(1);
timer.Tick += Timer_Tick;
timer.Start();
}
private void Timer_Tick(object sender, EventArgs e)
{
a++;
lblA.Content = a.ToString();
}
}
}
柚子快报激活码778899分享：开发语言 C#使用计时器
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