flask(webサーバ)—Python(4)

flask(webサーバ)—Python(4)
小さな知識
pip list flaskポート5000
Flaskのルーティングと逆ルーティング(chromeのpostmanプラグインを推奨)

from flask import Flask,request,url_for
app = Flask(__name__)
@app.route('/')
def hello_world():
    return 'Hello World!'
@app.route('/user', methods=['POST'])  #           get  ， postman  ， post  
def hello_user():
    return 'hello user'
@app.route('/users/')   #      http://127.0.0.1:5000/users/2
def user_id(id):
    return 'hello user:'+id
@app.route('/query_user')    #      http://127.0.0.1:5000/query_user?id=2
def query_user1():
    id = request.args.get('id')
    return 'query user:'+id
@app.route('/query_url')    #      
def query_url():
    return 'query url:'+url_for('query_user1')
if __name__ == '__main__':
    app.run()

Flaskのテンプレート

from flask import Flask, render_template
from models import User
app = Flask(__name__)
@app.route('/')
def hello_world():
    content = "Hello world"
    return render_template("index.html",content=content)
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