flask笔记：12：flask与nodejs通讯跨域问题解决

run.py：

from flask import Flaskfrom flask import Responseapp = Flask(__name__)@app.route('/')def hello_world():    return 'hello world'#接收一个字符串def Response_headers(content):    resp = Response(content)    #返回数据添加头部信息    resp.headers['Access-Control-Allow-Origin'] = '*'    return [e-mail]('/sss')def sss():    resp = Response_headers("aaaaa")    return respif __name__ == '__main__':    app.run(debug=True,threaded=True)

启动python run.py 

另一个方式用flask_cors

from flask import Flaskfrom flask_cors import *app = Flask(__name__)CORS(app, supports_credentials=True)@app.route('/')def hello_world():    return 'Hello World!'if __name__ == '__main__':    app.run(debug=True)