【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 
１：使用npm安装node-schedule模块
npm install node-schedule（１）每隔５分钟执行一次：
var schedule = require('node-schedule');
var rule = new schedule.RecurrenceRule();
rule.minute = [0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55];
var j = schedule.scheduleJob(rule, function () {
console.log("执行任务：" + new Date());
}); （２）上午８点到晚上２０点每隔５分钟执行一次：
var schedule = require('node-schedule');
var rule = new schedule.RecurrenceRule();
rule.hour = [8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
rule.minute = [0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55];
var j = schedule.scheduleJob(rule, function () {
console.log("执行任务：" + new Date());
});
２：以下内容参考：
http://www.codexpedia.com/javascript/nodejs-cron-schedule-examples/
Using the node-schedule to schedule a job to run at a specific time on a specific date. As the first example, the node-schedule module is imported and save it in the variable cron. In the following examle, the require statement will be ommitted and this variable cron will be used.
var cron = require('node-schedule');
/* run the job at 18:55:30 on Dec. 14 2018*/
var date =new Date(2018, 11, 14, 18, 56, 30);
cron.scheduleJob(date,function(){
console.log(new Date(),"The world is going to end today.");
});Schedule a recurring job using the RecurrenceRule, example 1.
var rule =new cron.RecurrenceRule();
rule.second = 30;
cron.scheduleJob(rule,function(){
console.log(new Date(),'The 30th second of the minute.');
});Schedule a recurring job using the RecurrenceRule, example 2.
/* This runs at 3:10AM every Friday, Saturday and Sunday. */
var rule2 =new cron.RecurrenceRule();
rule2.dayOfWeek = [5,6,0];
rule2.hour = 3;
rule2.minute = 10;
cron.scheduleJob(rule2,function(){
console.log('This runs at 3:10AM every Friday, Saturday and Sunday.');
});Specify the schedule as an object literal.
/* This runs at 2:30AM on every Sunday */
cron.scheduleJob({hour: 2, minute: 30, dayOfWeek: 0},function(){
console.log('This runs at 2:30AM on every Sunday');
});Specify the schedule in unix cron syntax.
/* This runs at the 30th mintue of every hour. */
cron.scheduleJob('30 * * * * *',function(){
console.log('This runs at the 30th mintue of every hour.');
});
来源：oschina
链接：https://my.oschina.net/u/113421/blog/540367