如何使用mongoose和node检索前5名的结果和总计数？

const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
  name: String,
  score: Number
});

const User = mongoose.model('User', userSchema);

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
  })
  .catch((error) => {
    console.error('Error connecting to MongoDB', error);
  });

User.find()
  .sort({ score: -1 })
  .limit(5)
  .exec((error, users) => {
    if (error) {
      console.error('Error retrieving users', error);
    } else {
      console.log('Top 5 users:', users);
    }
  });

User.countDocuments({}, (error, count) => {
  if (error) {
    console.error('Error counting documents', error);
  } else {
    console.log('Total count:', count);
  }
});

const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
  name: String,
  score: Number
});

const User = mongoose.model('User', userSchema);

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
    
    User.find()
      .sort({ score: -1 })
      .limit(5)
      .exec((error, users) => {
        if (error) {
          console.error('Error retrieving users', error);
        } else {
          console.log('Top 5 users:', users);
        }
      });
      
    User.countDocuments({}, (error, count) => {
      if (error) {
        console.error('Error counting documents', error);
      } else {
        console.log('Total count:', count);
      }
    });
  })
  .catch((error) => {
    console.error('Error connecting to MongoDB', error);
  });