#1.導(dǎo)入Flask類
from flask import Flask
#2.創(chuàng)建Flask對象接收一個參數(shù)__name__，它會指向程序所在的包
app = Flask(__name__)
#3.裝飾器的作用是將路由映射到視圖函數(shù)index
@app.route('/')
def index():
  return 'Hello World'
#4.Flask應(yīng)用程序?qū)嵗膔un方法,啟動WEB服務(wù)器
if __name__ == '__main__':
  app.run()

from flask import Flask
from werkzeug.routing import BaseConverter
#1.自定義類,繼承自BaseConverter
class MyRegexConverter(BaseConverter):
  # 2.編寫方法, init
  def __init__(self,map,regex):
    # 3.初始化, 父類, 子類變量
    super(MyRegexConverter, self).__init__(map)
    self.regex = regex
app = Flask(__name__)
# 4.將自定義轉(zhuǎn)換器添加到,系統(tǒng)默認(rèn)的轉(zhuǎn)換列表中
app.url_map.converters["re"] = MyRegexConverter
print(app.url_map.converters)
# 接收三位整數(shù)
# 通過re調(diào)用的init方法, 參數(shù)1[默認(rèn)]: app.url_map, 參數(shù)2: 自己定義的規(guī)則
@app.route('/<re("\d{3}"):number>')
def hello_world(number):
  return "the re number is %s"%number
# 接收四位整數(shù)
@app.route('/<re("\d{4}"):number>')
def get_four_number(number):
  return "the four number is %s"%number
# 接收手機(jī)號
@app.route('/<re("1[3456789]\d{9}"):mobile>')
def get_mobile_number(mobile):
  return "the mobile number is %s"%mobile
if __name__ == '__main__':
  app.run()

@app.route("/路徑",methods=["⽅式1","方式2"])

return "hello","666",{"name":"zhangsan"}

response = make_response("響應(yīng)體")
response.status = "狀態(tài)碼 狀態(tài)碼描述"
response.headers = {響應(yīng)頭鍵值對}
(response.headers["Content-Type"] = "application/json")
return response

jsonify(dict)
jsonify(key=value,key2=value2)

"""
url_for, 反解析,根據(jù)視圖函數(shù)名稱找到,視圖函數(shù)的路徑地址,可以攜帶參數(shù)
格式: url_for('函數(shù)名',key=value), 返回的是一個地址(字符串)
"""""
from flask import Flask,url_for,redirect
app = Flask(__name__)
# 京東, 代號111
@app.route('/jingdong')
def jingdong():
  #print(url_for("taobao")) #/taobao
  # print(url_for("taobao",token=111)) #/taobao/111
  response = redirect(url_for("taobao",token=111))
  return response
#易迅, 代號222
@app.route('/yixun')
def yixun():
  response = redirect(url_for("taobao",token=222))
  return response
@app.route('/other')
def other():
  response = redirect(url_for("taobao",token=888))
  return response
# 淘寶
@app.route('/taobao/<int:token>')
def taobao(token):
  #判斷哪個平臺過來的用戶
  if(token == 111):
    return "歡迎京東用戶,光臨淘寶,給你打9折"
  elif(token == 222):
    return "歡迎易迅用戶,光臨淘寶,給你打5折"
  else:
    return "其他用戶"
if __name__ == '__main__':
  app.run()

abort(code)

code為HTTP錯誤狀態(tài)碼
@app.errorhandler(code)
def fun():
…

class Config(object):
  #調(diào)試模式
  DEBUG=True
app.config.from_object(Config)

app.config.from_pyfile("config.ini")

app.config.from_envvar()