修改及建議：https://github.com/clxering/Quartz-Doc-Chinese-English-bilingual/blob/dev/Tutorials/Lesson-1
Before you can use the scheduler, it needs to be instantiated (who’d have guessed?). To do this, you use a SchedulerFactory. Some users of Quartz may keep an instance of a factory in a JNDI store, others may find it just as easy (or easier) to instantiate and use a factory instance directly (such as in the example below).
在使用調度程序之前，你需要使用 SchedulerFactory 對它進行實例化（誰能猜到呢？）。一些 Quartz 用戶可能在 JNDI 存儲中保存工廠實例，其他用戶可能會發現直接實例化與使用工廠實例同樣容易（或更容易），如下面的示例。
Once a scheduler is instantiated, it can be started, placed in stand-by mode, and shutdown. Note that once a scheduler is shutdown, it cannot be restarted without being re-instantiated. Triggers do not fire (jobs do not execute) until the scheduler has been started, nor while it is in the paused state.
一旦調度程序被實例化，就可以啓動它、將其置於待機模式或關閉它。注意，一旦調度程序關閉，就只能重新實例化來啓動。在調度程序啓動之前，或者處於暫停狀態時，觸發器不會觸發（作業不會執行）。
Here’s a quick snippet of code, that instantiates and starts a scheduler, and schedules a job for execution:
下面是一個代碼片段，它實例化並啓動一個調度程序，並調度一個作業來執行：
SchedulerFactory schedFact = new org.quartz.impl.StdSchedulerFactory();
Scheduler sched = schedFact.getScheduler();
sched.start();
// define the job and tie it to our HelloJob class
JobDetail job = newJob(HelloJob.class)
.withIdentity("myJob", "group1")
.build();
// Trigger the job to run now, and then every 40 seconds
Trigger trigger = newTrigger()
.withIdentity("myTrigger", "group1")
.startNow()
.withSchedule(simpleSchedule()
.withIntervalInSeconds(40)
.repeatForever())
.build();
// Tell quartz to schedule the job using our trigger
sched.scheduleJob(job, trigger);
As you can see, working with quartz is rather simple. In Lesson 2 we’ll give a quick overview of Jobs and Triggers, and Quartz’s API so that you can more fully understand this example.
如你所見，使用 quartz 相當簡單。在第二課中，我們將快速概述作業和觸發器，以及 Quartz 的 API，以便讓你可以更充分地理解這個示例。