npm install --save-dev typescript
npm install --save-dev @types/vue

{
  "compilerOptions": {
    "target": "es5",
    "module": "esnext",
    "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "baseUrl": ".",
    "types": [
      "webpack-env",
      "vue"
    ],
    "paths": {
      "@/*": [
        "src/*"
      ]
    },
    "lib": [
      "esnext",
      "dom",
      "dom.iterable",
      "scripthost"
    ]
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx",
    "src/**/*.vue",
    "tests/**/*.ts",
    "tests/**/*.tsx"
  ],
  "exclude": [
    "node_modules"
  ]
}

<script lang="ts">
import Vue from 'vue';

export default Vue.extend({
  props: {
    // ...
  },
  data() {
    return {
      // ...
    };
  },
  methods: {
    // ...
  },
});
</script>

<template>
  <div>
    <div :style="elementStyle">这是一个可以设置高度的元素</div>
    <button @click="setHeight">设置高度为200px</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      elementStyle: {
        height: '100px', // 初始高度
      },
    };
  },
  methods: {
    setHeight() {
      this.elementStyle.height = '200px'; // 动态设置高度
    },
  },
};
</script>

// util.d.ts
declare module '@/util' {
  export function someFunction(): void;
  // 其他导出的函数或者类型
}

<template>
  <el-table :data="tableData" border style="width: 100%">
    <el-table-column
      v-for="item in columns"
      :key="item.prop"
      :prop="item.prop"
      :label="item.label"
      :span-method="spanMethod"
    >
    </el-table-column>
  </el-table>
</template>

<script>
export default {
  data() {
    return {
      tableData: [
        { date: '2016-05-03', name: 'Tom', address: 'No.1' },
        { date: '2016-05-02', name: 'Tom', address: 'No.2' },
        { date: '2016-05-04', name: 'Jerry', address: 'No.3' },
        { date: '2016-05-01', name: 'Jerry', address: 'No.4' },
      ],
      columns: [
        { label: '日期', prop: 'date' },
        { label: '姓名', prop: 'name' },
        { label: '地址', prop: 'address' },
      ],
    };
  },
  methods: {
    spanMethod({ row, column, rowIndex, columnIndex }) {
      if (columnIndex === 1) {
        if (rowIndex === 0) {
          return [1, 2];
        } else {
          return [0, 0];
        }
      }
    },
  },
};
</script>

function sum(a, b) {
  return a + b;
}

module.exports = sum;

function sum(a: number, b: number): number {
  return a + b;
}

export default sum;

// 错误的导入方式
import App from '/App.vue';

// 正确的导入方式，假设App.vue与main.ts在同一目录下
import App from './App.vue';

const axios = require('axios');

// 创建axios实例
const instance = axios.create({
  // 设置代理服务器地址
  baseURL: 'http://your-proxy-server.com',
  // 设置超时时间
  timeout: 1000,
  // 可以在这里配置代理认证
  // auth: {
  //   username: 'proxyuser',
  //   password: 'proxypass'
  // }
});

// 使用实例发送请求
instance.get('/some-endpoint')
  .then(response => {
    console.log('代理请求成功:', response.data);
  })
  .catch(error => {
    console.error('代理请求失败:', error);
  });

# models.py
from django.db import models

class SelfStudyRoom(models.Model):
    name = models.CharField(max_length=100)
    capacity = models.IntegerField()
    is_available = models.BooleanField(default=True)

class Reservation(models.Model):
    room = models.ForeignKey(SelfStudyRoom, on_delete=models.CASCADE)
    student = models.ForeignKey(User, on_delete=models.CASCADE)
    date = models.DateField()
    time = models.TimeField()

# views.py
from django.shortcuts import render
from .models import SelfStudyRoom, Reservation
from django.contrib.auth.decorators import login_required

@login_required
def home(request):
    reservations = Reservation.objects.filter(student=request.user)
    return render(request, 'home.html', {'reservations': reservations})

@login_required
def manage_reservations(request):
    reservations = Reservation.objects.all()
    return render(request, 'manage_reservations.html', {'reservations': reservations})

@RestController
@RequestMapping("/files")
public class FileController {
    // 上传文件的接口
    @PostMapping("/upload")
    public ResponseEntity<String> uploadFile(@RequestParam("file") MultipartFile file) {
        // 文件上传的逻辑
        // ...
        return ResponseEntity.ok("File uploaded successfully");
    }

    // 下载文件的接口
    @GetMapping("/download/{fileName}")
    public ResponseEntity<Resource> downloadFile(@PathVariable String fileName) {
        // 文件下载的逻辑
        // ...
        return ResponseEntity.ok().body(fileResource);
    }
}

<?php
// 上传文件的处理
if ($_FILES['file']['error'] == UPLOAD_ERR_OK) {
    $uploadDir = 'uploads/';
    $filename = basename($_FILES['file']['name']);
    move_uploaded_file($_FILES['file']['tmp_name'], $uploadDir . $filename);
}

// 下载文件的处理
$file = 'path/to/file';
if (file_exists($file)) {
    header('Content-Description: File Transfer');
    header('Content-Type: application/octet-stream');
    header('Content-Disposition: attachment; filename="'.basename($file).'"');
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    header('Content-Length: ' . filesize($file));
    readfile($file);
    exit;
}
?>

const express = require('express');
const app = express();
const port = 3000;

app.post('/upload', (req, res) => {
    // 文件上传的逻辑
    // ...
    res.send('File uploaded successfully');
});

app.get('/download/:fileName', (req, res) => {
    // 文件下载的逻辑
    // ...
    res.download('path/to/file');
});

app.listen(port, () => {
  console.log(`Server listening at http://localhost:${port}`);
});

from flask import Flask, request, send_file

app = Flask(__name__)

@app.route('/upload', methods=['POST'])
def upload_file():
    # 获取上传的文件
    file = request.files['file']
    # 文件上传的逻辑
    # ...
    return 'File uploaded successfully', 200

@app.route('/download/<filename>', methods=['GET'])
def download_file(filename):
    # 文件下载的逻辑
    # ...
    return send_file('path/to/file', as_attachment=True)

if __name__ == '__main__':
    app.run(debug=True)

const express = require('express');
const app = express();
const port = 3000;

// 中间件，用于解析JSON请求体
app.use(express.json());

// 简单的API路由
app.get('/api/hello', (req, res) => {
  res.send({ message: 'Hello, World!' });
});

app.post('/api/data', (req, res) => {
  const data = req.body;
  // 处理POST请求中的数据
  // ...
  res.status(201).send(data);
});

// 启动服务器
app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});