### 首页
GET http://localhost:3000 HTTP/1.1

### 获取课程列表

GET http://localhost:3000/api/courses HTTP/1.1

### 根据课程id获取对应的课程信息
GET http://localhost:3000/api/courses/1 HTTP/1.1

###
POST http://localhost:3000/api/courses HTTP/1.1
content-type: application/json

{
    "name": "C++ Threads Using Boost in 5 Minutes",
    "videoAdress": "https://www.youtube.com/watch?v=-Qa1RqmXKG0"
}

### 修改课程信息
PUT http://localhost:3000/api/courses/1 HTTP/1.1
content-type: application/json

{
    "name": "C++ Threads Using Boost in 5 Minutes",
    "videoAdress": "https://www.youtube.com/watch?v=-Qa1RqmXKG0"
}

### 根据课程Id删除某个课程
DELETE http://localhost:3000/api/courses/1 HTTP/1.1