[DAY8]Python_Flask

MINJOO·2022년 3월 30일

Flask는 웹페이지를 찍어내는 공장

<어려운점>

<학습소감>

2022 DaeguAI school

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6/8

Flask는 웹페이지를 찍어내는 공장

-관련 사이트 : Glitch (glitch.com)
+회원 가입후에 코드작성 시작
+실시간으로 코드가 변경되는걸 볼 수 있다

오늘은 server.py에서 코드를 작성했다.

<오늘의 코드>

from flask import Flask

app = Flask(__name__)

topics = [
  {"id":1, "title":"html", "body":"html is ...."},
  {"id":2, "title":"css", "body":"css is ...."},
  {"id":3, "title":"js", "body":"js is ...."}
]

def template(content):
  liTags = ''
  for topic in topics:
    liTags = liTags + f'<li><a href="/read/{topic["id"]}/">{topic["title"]}</a></li>'
  return f'''
  <html>
    <body>
      <h1><a href="/">WEB</a></h1>
      <ol>
        {liTags}
      </ol>
      {content}
      <ul>
        <li><a href="/create/">create</a></li>
      </ul>
    </body>
  </html>
  '''

@app.route("/")
def index():
  return template('<h2>Welcome</h2>Hello, WEB!')

@app.route("/read/<int:id>/")
def read(id):
  title = ''
  body = ''  
  for topic in topics :
    if topic['id'] == id:
      title = topic['title']
      body = topic['body']
      break;
  return template(f'<h2>{title}</h2>{body}')

@app.route('/create/')
def create():
  content = '''
    <form action="/create/">
      <p><input type="text" name="title" placeholder="title"></p>
      <p><textarea name="body" placeholder="body"></textarea></p>
      <p><input type="submit" value="create"></p>
    </form>
  '''
  return template(content)

@app.route('/update/')
def update():
  return 'Update'

app.run()

-라우터란?

<어려운점>

코드내에 오류가 발생함에 즉각 대응이 어렵다..
ex) -맞는 코드-

from flask import Flask

app = Flask(__name__)

topics = [
  {"id":1, "title":"html", "body":"html is ...."},
  {"id":2, "title":"css", "body":"css is ...."}
]

@app.route("/")
def index():
  liTags = ''
  for topic in topics:
    liTags = liTags + f'<li>{topic["title"]}</li>'
  return f'''
  <html>
    <body>
      <h1><a href="/">WEB</a></h1>
      <ol>
        {liTags}
      </ol>
      <h2>Welcome</h2>
      Hello, WEB!
    </body>
  </html>
  '''

@app.route("/read/1/")
def read():
  return '''
  <html>
    <body>
      <h1><a href="/">WEB</a></h1>
      <ol>
        <li><a href="/read/1/">html</a></li>
        <li><a href="/read/2/">css</a></li>
        <li><a href="/read/3/">js</a></li>
      </ol>
      <h2>Read</h2>
      Hello, Read!
    </body>
  </html>
  '''
  
@app.route('/create/')
def create():
  return 'Create'

@app.route('/update/')
def update():
  return 'Update'

app.run()
![](https://velog.velcdn.com/images%2Fmonica8842%2Fpost%2Fdccdfc11-9bbe-4d18-9072-b0ad6e901670%2Fimage.png)

-틀린코드-

from Flask import Flask

app = Flask(__name__)

topics = [
  {"id":1, "title":"html", "body":"html is ...."},
  {"id":2, "title":"css", "body":"css is ...."}
]

@app.route("/")
def index():
  liTags = ''
  for topic in topics:
    liTags = liTags + f'<li>{topic["title"]}</li>'
  return f'''
  <html>
    <body>
      <h1><a href="/">WEB</a></h1>
      <ol>
        {liTags}
      </ol>
      <h2>Welcome</h2>
      Hello, WEB!
    </body>
  </html>
  '''
@app.route("/read/1/")
def read():
  return '''
  <html>
    <body>
      <h1><a href="/">WEB</a></h1>
      <ol>
        <li><a href="/read/1/">html</a></li>
        <li><a href="/read/2/">css</a></li>
        <li><a href="/read/3/">js</a></li>
      </ol>
      <h2>Read</h2>
      Hello, Read!
    </body>
  </html>
  '''
      
@app.route('/create/')
def create():
    return 'Create'
  
@app.route('/update/')
def update():
  return 'Update'
  
  app.run()
![](https://velog.velcdn.com/images%2Fmonica8842%2Fpost%2F70bb5ecf-44cc-47f2-9100-75e2b907ba48%2Fimage.png)```
코드를 입력하세요