【app.py】退出登录后清楚session

-from flask import Flask
+from flask import Flask,session,request,redirect,render_template
 
 app = Flask(__name__)
 
 @app.route('/')
-def hello():
-    return "小学期快乐！"
+def hello_world():  # put application's code here
+    return session.clear()
 
 if __name__ == '__main__':
     app.run()
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