Flask Run

Quickstart

• On PowerShell

  mkdir flk
  cd flk
  py -m venv venv
  pip install flask
  mk hello.py
  New-Item hello.py -type file

• 在 hello.py 写入

  from flask import Flask
  app = Flask(__name__)
  
  @app.route('/')
  def hello_world():
  return 'Hello, World!'

• run

  $env:FLASK_APP = "hello.py"
  flask run

• get / post

  @app.route('/')
  def hello_world():
      return 'Hello, World!'
  
  
  @app.route('/name')
  def elias():
      return 'Hello, elias!'
  
  @app.route('/name/<username>')  #<>内默认 String
  def elias(username):
      return 'Hello, %s!' % username
  
  # @app.route('/name/<float:a>') #float
  @app.route('/name/<int:a>') # int
  def elias(a):
      return 'Hello, %s!' % (a + a)
  
  @app.route('/login', methods=['GET', 'POST'])
  def login():
      if request.method == 'POST':
          return "A"
      else:
          return "B"

Reference

• flask教程
• 👉Flask