from?flask?import?Flask,?url_for from?werkzeug.utils?import?redirect app?=?Flask(__name__) @app.route('/admin') def?hello_admin(): ???return?'Hello?Admin' @app.route('/guest/') def?hello_guest(guest): ???return?'Hello?%s?as?Guest'?%?guest @app.route('/user/') def?hello_user(name): ???if?name?=='admin': ??????return?redirect(url_for('hello_admin')) ???else: ??????return?redirect(url_for('hello_guest'),?guest?=?name) ??????#?if?__name__?==?'__main__': #????app.run(debug?=?True) if?__name__?==?'__main__': ???app.run(debug=True)1、運行 http://127.0.0.1:5000/admin 顯示?Hello?Admin?運行正常2、但是運行http://127.0.0.1:5000/user/?? ?顯示如下錯誤：TypeErrorTypeError:?hello_user()?missing?1?required?positional?argument:?'name'?3、再次運行http://127.0.0.1:5000/user/admin? ?顯示如下錯誤： Not?FoundThe?requested?URL?was?not?found?on?the?server.?If?you?entered?the?URL?manually?please?check?your?spelling?and?try?again.?4、再次運行http://127.0.0.1:5000/user/aaa顯示如下錯誤：Not?FoundThe?requested?URL?was?not?found?on?the?server.?If?you?entered?the?URL?manually?please?check?your?spelling?and?try?again.?第3、4次運行中是不是我的輸入是錯誤導致的？那么參數應該怎么傳呢？?5、因為以上代碼是教程中到源代碼，應該是沒有錯的。后來我修改了源代碼中@app.route('/user/<name>')加入了<name>這個參數。運行??http://127.0.0.1:5000/admin和?http://127.0.0.1:5000/user/admin?都顯示Hello?Admin?運行正常。但是運行http://127.0.0.1:5000/user/kjkj顯示如下錯誤：TypeErrorTypeError:?redirect()?got?an?unexpected?keyword?argument?'guest'請問問題到底出在哪里呢？？