C# 定时任务

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| 17165281| C# 定时任务| 2023-02-28T17:26:00| | BlogPost|

C# 定时任务 - XL、 - 博客园 (cnblogs.com)

工作中需要做个每天定时发邮件的功能，了解之后知道java里有做定时任务比较容易的方法，就是Quartz，在C#里叫Quartz.Net。

在写代码之前需要引用几个dll文件，分别是C5.dll、Common.Logging.dll和Quartz.dll；还有一个QuartzManager.cs文件，直接复制到项目中

QuartzManager.cs

 

复制代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Quartz;

using Quartz.Impl;

using Quartz.Impl.Triggers;


namespace Quartz

{

public static class QuartzManager

{

private static ISchedulerFactory sf = null;

private static IScheduler sched = null;


    </span><span style="color: #0000ff;">static</span><span style="color: #000000;"> QuartzManager()
    {
        sf </span>= <span style="color: #0000ff;">new</span><span style="color: #000000;"> StdSchedulerFactory();
        sched </span>=<span style="color: #000000;"> sf.GetScheduler();
        sched.Start();
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以定点的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="CronTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="jobDataMap"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, <span style="color: #0000ff;">string</span> CronTime, <span style="color: #0000ff;">string</span> jobData) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        IJobDetail jobCheck </span>= JobBuilder.Create&lt;T&gt;().WithIdentity(JobName, JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_Group</span><span style="color: #800000;">"</span>).UsingJobData(<span style="color: #800000;">"</span><span style="color: #800000;">jobData</span><span style="color: #800000;">"</span><span style="color: #000000;">, jobData).Build();
        ICronTrigger CronTrigger </span>= <span style="color: #0000ff;">new</span> CronTriggerImpl(JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_CronTrigger</span><span style="color: #800000;">"</span>, JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_TriggerGroup</span><span style="color: #800000;">"</span><span style="color: #000000;">, CronTime);
        </span><span style="color: #0000ff;">return</span><span style="color: #000000;"> sched.ScheduleJob(jobCheck, CronTrigger);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以定点的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="CronTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, <span style="color: #0000ff;">string</span> CronTime) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        </span><span style="color: #0000ff;">return</span> AddJob&lt;T&gt;(JobName, CronTime, <span style="color: #0000ff;">null</span><span style="color: #000000;">);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以周期的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;</span><span style="color: #008000;">毫秒数</span><span style="color: #808080;">&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, <span style="color: #0000ff;">int</span> SimpleTime) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        </span><span style="color: #0000ff;">return</span> AddJob&lt;T&gt;(JobName, DateTime.UtcNow.AddMilliseconds(<span style="color: #800080;">1</span><span style="color: #000000;">), TimeSpan.FromMilliseconds(SimpleTime));
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以周期的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;</span><span style="color: #008000;">毫秒数</span><span style="color: #808080;">&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, DateTimeOffset StartTime, <span style="color: #0000ff;">int</span> SimpleTime) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        </span><span style="color: #0000ff;">return</span> AddJob&lt;T&gt;<span style="color: #000000;">(JobName, StartTime, TimeSpan.FromMilliseconds(SimpleTime));
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以周期的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, DateTimeOffset StartTime, TimeSpan SimpleTime) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        </span><span style="color: #0000ff;">return</span> AddJob&lt;T&gt;(JobName, StartTime, SimpleTime, <span style="color: #0000ff;">new</span> Dictionary&lt;<span style="color: #0000ff;">string</span>, <span style="color: #0000ff;">object</span>&gt;<span style="color: #000000;">());
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以周期的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="StartTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;</span><span style="color: #008000;">毫秒数</span><span style="color: #808080;">&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="jobDataMap"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, DateTimeOffset StartTime, <span style="color: #0000ff;">int</span> SimpleTime, <span style="color: #0000ff;">string</span> MapKey, <span style="color: #0000ff;">object</span> MapValue) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        Dictionary</span>&lt;<span style="color: #0000ff;">string</span>, <span style="color: #0000ff;">object</span>&gt; map = <span style="color: #0000ff;">new</span> Dictionary&lt;<span style="color: #0000ff;">string</span>, <span style="color: #0000ff;">object</span>&gt;<span style="color: #000000;">();
        map.Add(MapKey, MapValue);
        </span><span style="color: #0000ff;">return</span> AddJob&lt;T&gt;<span style="color: #000000;">(JobName, StartTime, TimeSpan.FromMilliseconds(SimpleTime), map);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 添加Job 并且以周期的形式运行
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;typeparam name="T"&gt;&lt;/typeparam&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="StartTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="jobDataMap"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;returns&gt;&lt;/returns&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> DateTimeOffset AddJob&lt;T&gt;(<span style="color: #0000ff;">string</span> JobName, DateTimeOffset StartTime, TimeSpan SimpleTime, Dictionary&lt;<span style="color: #0000ff;">string</span>, <span style="color: #0000ff;">object</span>&gt; map) <span style="color: #0000ff;">where</span><span style="color: #000000;"> T : IJob
    {
        IJobDetail jobCheck </span>= JobBuilder.Create&lt;T&gt;().WithIdentity(JobName, JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_Group</span><span style="color: #800000;">"</span><span style="color: #000000;">).Build();
        jobCheck.JobDataMap.PutAll(map);
        ISimpleTrigger triggerCheck </span>= <span style="color: #0000ff;">new</span> SimpleTriggerImpl(JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_SimpleTrigger</span><span style="color: #800000;">"</span>, JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_TriggerGroup</span><span style="color: #800000;">"</span><span style="color: #000000;">,
                                    StartTime,
                                    </span><span style="color: #0000ff;">null</span><span style="color: #000000;">,
                                    SimpleTriggerImpl.RepeatIndefinitely,
                                    SimpleTime);
        </span><span style="color: #0000ff;">return</span><span style="color: #000000;"> sched.ScheduleJob(jobCheck, triggerCheck);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 修改触发器时间,需要job名,以及修改结果
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> CronTriggerImpl类型触发器
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> UpdateTime(<span style="color: #0000ff;">string</span> jobName, <span style="color: #0000ff;">string</span><span style="color: #000000;"> CronTime)
    {
        TriggerKey TKey </span>= <span style="color: #0000ff;">new</span> TriggerKey(jobName + <span style="color: #800000;">"</span><span style="color: #800000;">_CronTrigger</span><span style="color: #800000;">"</span>, jobName + <span style="color: #800000;">"</span><span style="color: #800000;">_TriggerGroup</span><span style="color: #800000;">"</span><span style="color: #000000;">);
        CronTriggerImpl cti </span>= sched.GetTrigger(TKey) <span style="color: #0000ff;">as</span><span style="color: #000000;"> CronTriggerImpl;
        cti.CronExpression </span>= <span style="color: #0000ff;">new</span><span style="color: #000000;"> CronExpression(CronTime);
        sched.RescheduleJob(TKey, cti);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 修改触发器时间,需要job名,以及修改结果
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> SimpleTriggerImpl类型触发器
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="jobName"&gt;&lt;/param&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="SimpleTime"&gt;</span><span style="color: #008000;">分钟数</span><span style="color: #808080;">&lt;/param&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> UpdateTime(<span style="color: #0000ff;">string</span> jobName, <span style="color: #0000ff;">int</span><span style="color: #000000;"> SimpleTime)
    {
        UpdateTime(jobName, TimeSpan.FromMinutes(SimpleTime));
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 修改触发器时间,需要job名,以及修改结果
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> SimpleTriggerImpl类型触发器
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> UpdateTime(<span style="color: #0000ff;">string</span><span style="color: #000000;"> jobName, TimeSpan SimpleTime)
    {
        TriggerKey TKey </span>= <span style="color: #0000ff;">new</span> TriggerKey(jobName + <span style="color: #800000;">"</span><span style="color: #800000;">_SimpleTrigger</span><span style="color: #800000;">"</span>, jobName + <span style="color: #800000;">"</span><span style="color: #800000;">_TriggerGroup</span><span style="color: #800000;">"</span><span style="color: #000000;">);
        SimpleTriggerImpl sti </span>= sched.GetTrigger(TKey) <span style="color: #0000ff;">as</span><span style="color: #000000;"> SimpleTriggerImpl;
        sti.RepeatInterval </span>=<span style="color: #000000;"> SimpleTime;
        sched.RescheduleJob(TKey, sti);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 暂停所有Job
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> 暂停功能Quartz提供有很多,以后可扩充
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> PauseAll()
    {
        sched.PauseAll();
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 恢复所有Job
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> 恢复功能Quartz提供有很多,以后可扩充
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span><span style="color: #000000;"> ResumeAll()
    {
        sched.ResumeAll();
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 删除Job
    </span><span style="color: #808080;">///</span><span style="color: #008000;"> 删除功能Quartz提供有很多,以后可扩充
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="JobName"&gt;&lt;/param&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> DeleteJob(<span style="color: #0000ff;">string</span><span style="color: #000000;"> JobName)
    {
        JobKey jk </span>= <span style="color: #0000ff;">new</span> JobKey(JobName, JobName + <span style="color: #800000;">"</span><span style="color: #800000;">_Group</span><span style="color: #800000;">"</span><span style="color: #000000;">);
        sched.DeleteJob(jk);
    }

    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;summary&gt;</span>
    <span style="color: #808080;">///</span><span style="color: #008000;"> 卸载定时器
    </span><span style="color: #808080;">///</span> <span style="color: #808080;">&lt;/summary&gt;</span>
    <span style="color: #808080;">///</span> <span style="color: #808080;">&lt;param name="waitForJobsToComplete"&gt;</span><span style="color: #008000;">是否等待job执行完成</span><span style="color: #808080;">&lt;/param&gt;</span>
    <span style="color: #0000ff;">public</span> <span style="color: #0000ff;">static</span> <span style="color: #0000ff;">void</span> Shutdown(<span style="color: #0000ff;">bool</span><span style="color: #000000;"> waitForJobsToComplete)
    {
        sched.Shutdown(waitForJobsToComplete);
    }
}



}

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窗体界面上只有一个Button按钮，点击之后将当前Windows窗体关闭，而我的定时任务就是实现这个关闭。

.closeForm（）；关闭窗体方法在另写的一个stopjob.cs类文件调用 这个类需要继承IJob

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using Quartz;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace winform状态栏

{

[PersistJobDataAfterExecution]

[DisallowConcurrentExecution]

public class stopjob : IJob

{

public void Execute(IJobExecutionContext context)

{

Program.form.closeForm();

}

}

}

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上面代码中，Program.form并不是开始创建的那个窗体，而是在Program类文件中创建的静态Form。为什么另创建一个静态Form？涉及到子线程关闭主线程问题

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace winform状态栏

{

static class Program

{


    public static Form1 form;
    /// &lt;summary&gt;
    /// 应用程序的主入口点。
    /// &lt;/summary&gt;
    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        form = new Form1();
        Application.Run(form);
    }
}



}

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Form.cs文件里引用Quartz（using Quartz;）

然后是关闭按钮（Button）的事件

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using Quartz;
using System;
using System.Text.RegularExpressions;
using System.Windows.Forms;

namespace winform状态栏

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}


    private void button_close(object sender, EventArgs e)
    {
        //cron表达式 参考 http://www.cnblogs.com/sunjie9606/archive/2012/03/15/2397626.html
        QuartzManager.AddJob&lt;stopjob&gt;("每隔5秒", "*/5 * * * * ?");//每隔5秒执行一次这个方法
    }

    private delegate void CloseForm();//设计到多线程，子线程去控制主线程的控件，InvokeRequired值为true，用到定义委托，使得这个控制行为成为主线程的行为

    public void closeForm()
    {
        if (this.InvokeRequired)
        {
            this.BeginInvoke(new CloseForm(closeForm));
        }
        else
        {
            this.Close();
        }
    }
}



}

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关于执行stopjob的时间，我这里是用的每隔5秒执行一次，具体的解释在另一位博主那里有介绍 

http://www.cnblogs.com/sunjie9606/archive/2012/03/15/2397626.html

其中C5.dll、Common.Logging.dll、Quartz.dll文件的链接http://pan.baidu.com/s/1hsBn1Bm（如果失效联系博主）

我学习Quartz.Net时用的是winform，大家可以试试别的，这样关于线程的问题应该就可以避免，这也是我没有想到的问题

| 648658| | 2024-04-29T20:51:00| false| | 2023-02-28T17:25:55.4| true| C# 定时任务 - XL、 - 博客园 (cnblogs.com) 工作中需要做个每天定时发邮件的功能，了解之后知道java里有做定时任务比较容易的方法，就是Quartz，在C#里叫Quartz.Net。 在写代码之前需要引用几个dll文件，分别是C5.dll、Common.Logging.dll和| Anonymous|
posted @   RalphLauren  阅读(15)  评论(0)  编辑  收藏  举报
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