我可以让我的机器人在离线时在特定的文本频道中发送消息吗？

Question

I already have a function which allows the bot to send a message when it is online, but if the bot is offline I want it to send a message saying that it is now offline so that people can check the activity of the bot.

Answer 1

No you cannot because there is no way for the program to know before the bot goes offline, unless you specifically make it go offline yourself, why can they not just check if the bot has an online/invisible status?

Another option is to do a ping command, if the bot responds, its online if not its offline:

client.on("message", msg => {
   if(msg.content === "!ping") {
     return msg.reply("Online!");
   }
});