你的問題在這里：
var index = Math.floor(Math.random() * (status_list.length - 1) + 1);
這將每次都聲明相同的，這就是它不更新的原因
每次將我的機器人添加到新服務器時，我都希望它刷新狀態。
這就是您（無意）錯過的。你想要做的是，正如你已經做過的那樣，使用setInterval(). 無論數字是否更改，這都會每隔一段時間刷新一次狀態。您不必確保它已更改，因為它對您的實例的負載很小。
現在，嘗試遵循以下代碼：
bot.on('ready', async () => { // async is recommended as discord.js generally uses async/await.
// Logs in the console that the bot is ready.
console.log(`${bot.user.username} is now ready!`);
// Rather than using an array, which is generally harder to use, manually set the variables instead.
const status = `stuff on ${bot.guilds.cache.size} servers.`
// Set the Interval of Refresh.
setInterval(async () => { // Again, async is recommended, though does not do anything for our current purpose.
// Set the activity inside of `setInterval()`.
bot.user.setActivity(status, { type: "LISTENING" });
}, 15000) // Refreshes every 15000 miliseconds, or 15 seconds.
});
這應該可以滿足您的需要，但正如我從您的代碼中看到的那樣，您試圖隨機狀態？如果是這樣，請改為執行以下操作：
bot.on('ready', async () => {
console.log(`${bot.user.username} is now ready!`);
// In this one, you will need to make an array. Add as many as you want.
const status_list = [`stuff on ${bot.guilds.cache.size} servers.`, `stuff on ${bot.channels.cache.size} channels.`];
// Now randomize a single status from the status_list. With this, you have singled out a random status.
const status = Math.floor(Math.random() * status_list.length);
setInterval(async () => {
bot.user.setActivity(status, { type: "LISTENING" });
}, 15000)
});
現在，如果你想要一個不斷變化的（不是隨機的）狀態，你可以使用下面的代碼：
bot.on('ready', async () => {
console.log(`${bot.user.username} is now ready!`);
const status_list = [`stuff on ${bot.guilds.cache.size} servers.`, `stuff on ${bot.channels.cache.size} channels.`];
// Create a new `let` variable, which can be assigned to, say, `count`.
// We start from 0 so that it doesn't mess up.
let count = 0;
setInterval(async () => {
// Check if the count is already the length of the status_list, if it is, then return to 0 again. This has to be done before the `status` variable has been set.
if (count === status_list.length + 1) count = 0;
// Define Status by using the counter
const status = status_list[count];
// Add the counter by 1 every time the interval passed, which indicates that the status should be changed.
count = count + 1;
bot.user.setActivity(status, { type: "LISTENING" });
}, 15000)
});
