解决flask接口被请求时跨域问题

from flask import Flask

from flask_cors import CORS

app = Flask(__name__)

CORS(app, resources=r'/*')

@app.route('/')

def hello_world():

　　return {'hello': 'world!'}

if __name__ == '__main__':

　　app.run(debug=True, host='0.0.0.0')

参考: https://www.cnblogs.com/maplesnow/p/11906473.html