如何每天在特定时间发送消息？ [英] How can I send a message every day at a specific hour?

问题描述

我正在尝试让机器人在特定时间写消息。示例：

I'm trying to make the bot writing messages at specific times. Example:

const Discord = require("discord.js");
const client = new Discord.Client();
client.on("ready", () => {
  console.log("Online!");
});
var now = new Date();
var hour = now.getUTCHours();
var minute = now.getUTCMinutes();
client.on("message", (message) => {
  if (hour === 10 && minute === 30) {
    client.channels.get("ChannelID").send("Hello World!");
  }
});

不幸的是，它只有在我触发另一个命令后才起作用：

Unfortunately, it only works once I trigger another command like:

if (message.content.startsWith("!ping")) {
  message.channel.send("pong!");
}

my message: !ping (at 10:10 o'clock)
-> pong!
-> Hello World!

我想它需要不断检查时间变量的东西。

I guess it needs something that constantly checks the time variables.

推荐答案

我会使用 cron ：使用此程序包，可以设置日期与给定模式匹配时要执行的功能。

构建模式时，可以使用 * 表示可以使用该参数的任何值来执行，并且范围仅指示特定值： 1-3，7 表示您接受 1、2、3、7 。

I would use cron: with this package you can set functions to be executed if the date matches the given pattern.
When building the pattern, you can use * to indicate that it can be executed with any value of that parameter and ranges to indicate only specific values: 1-3, 7 indicates that you accept 1, 2, 3, 7.

这些是可能的范围：

• 秒： 0-59


• 分钟： 0-59


• 工作时间： 0-23


• 每月的天数： 1-31


• 月的时间： 0-11 （1月至12月）


• 星期几： 0-6 （周日至周六）

• Seconds: 0-59
• Minutes: 0-59
• Hours: 0-23
• Day of Month: 1-31
• Months: 0-11 (Jan-Dec)
• Day of Week: 0-6 (Sun-Sat)

这里是一个例子：

var cron = require("cron");

function test() {
  console.log("Action executed.");
}

let job1 = new cron.CronJob('01 05 01,13 * * *', test); // fires every day, at 01:05:01 and 13:05:01
let job2 = new cron.CronJob('00 00 08-16 * * 1-5', test); // fires from Monday to Friday, every hour from 8 am to 16

// To make a job start, use job.start()
job1.start();
// If you want to pause your job, use job.stop()
job1.stop();

在您的情况下，我会这样做：

In your case, I would do something like this:

const cron = require('cron');

client.on('message', ...); // You don't need to add anything to the message event listener

let scheduledMessage = new cron.CronJob('00 30 10 * * *', () => {
  // This runs every day at 10:30:00, you can do anything you want
  let channel = yourGuild.channels.get('id');
  channel.send('You message');
});

// When you want to start it, use:
scheduledMessage.start()
// You could also make a command to pause and resume the job

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