python Flask基础使用

下载Flask

pip install flask

上代码

from flask import Flask
from apscheduler.schedulers.background import BackgroundScheduler
import pytz

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello World ! = ' + str(a)

global a
a = 2
def job1():
    global a
    a = a + 1
    print("做了加1处理")

def init():
    timez = pytz.timezone('Asia/Shanghai')
    sched = BackgroundScheduler(timezone=timez)
    sched.add_job(job1, 'interval', seconds=5, args=[], max_instances=1)
    sched.start()

if __name__ == '__main__':
    init()
    app.run()

注意：用pycharm创建的Flask项目默认是不执行“__main__”的，配置方法如下图：

 接收post数据的例子

from flask import Flask
from apscheduler.schedulers.background import BackgroundScheduler
import pytz
from flask import request
import json

app = Flask(__name__)

@app.route('/', methods=['POST'])
def hello_world():
    data = request.get_data()
    json_data = json.loads(data.decode("utf-8"))
    print(json_data)
    print(json_data.get('test'))
    return 'Hello World ! = ' + str(a)

global a
a = 2
def job1():
    global a
    a = a + 1
    print("做了加1处理")

def init():
    timez = pytz.timezone('Asia/Shanghai')
    sched = BackgroundScheduler(timezone=timez)
    sched.add_job(job1, 'interval', seconds=5, args=[], max_instances=1)
    sched.start()

if __name__ == '__main__':
    init()
    app.run()

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