Session

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""" 1. 请求刚刚达到     ctx = RequestContext(...)           - request           - session=None     ctx.push()         ctx.session = SecureCookieSessionInterface.open_session   2. 视图函数   3. 请求结束     SecureCookieSessionInterface.save_session() """ from flask import Flask,session app = Flask(__name__) app.secret_key = 'sadfasdfasdf'   @app.route('/x1') def index():     # 去ctx中获取session     session['k1'] = 123     session['k2'] = 123     del session['k2']     return "Index"     @app.route('/x2') def order():     print(session['k1'])     return "Order"   if __name__ == '__main__':     app.run()       # 1. 请求一旦到来显     app.__call__     app.wsgi_app     app.open_session