"总是在 Flask 中输入“if 语句”，用户的输入存储在 python 字典中"

Question

使用 Flask，我试图将用户的输入动态记录到字典“REGISTRANTS”中。 然后使用字典值作为 if 条件，但不知何故，总是会输入 IF 语句。

我已经通过选择不同的“机场”测试了我的代码，并且在 python 命令行中，保存在字典中的打印的选定机场是正确的。 即，我在我的html文件中选择了'桃园机场'，然后执行print((list(REGISTRANTS.values())[0][0])<\/strong> ，打印的结果确实是桃园机场<\/strong>。但是IF语句仍然进入了**if list(REGISTRANTS.values())[0][0]== '台北机场'条件。

我怎么知道 IF 语句哪里出错了？

from flask import Flask, render_template, request, redirect

app = Flask(__name__)    

REGISTRANTS={}

AIRPORTS = [ 'Taipei Airport' , 'Taoyuan Airport' , 'Taichung Airport','Kaohsiung Airport' ]

DESTINATIONS= [ 'Taipei Municipality','New Taipei Municipality','Taoyuan Municipality','Taichung Municipality','Tainan Municipality','Kaousiung Municipality','Hsinchu','Miaoli','Changhua','Nantou','Yunlin','Chiayi','Pintung','Yilan','Hualien','Taitung','Penghu','Kinmen','Keelung' ]

TRANSPORTATION_METHODS=[ 'Bus', 'Taxi','Bus+Taxi' ]

@app.route('/')
def index():
    return render_template('index.html',airports=AIRPORTS,destinations=DESTINATIONS,transportation_methods=TRANSPORTATION_METHODS) 

@app.route('/register', methods=['POST'])
def register():
    name=request.form.get('name')
    if not name:
        return render_template('error.html', message='Missing name')
    
    airport=request.form.get('airport')
    if not airport:
        return render_template('error.html', message='Missing Airport')
    if airport not in AIRPORTS:
        return render_template('error.html',message='Invalid airport')
    
    destination=request.form.get('destination')
    if not destination:
        return render_template('error.html',message='Missing Destination')
    if destination not in DESTINATIONS:
        return render_template('error.html',message='Invalid Destination')

    transportation_method=request.form.get('transportation_method')
    if not transportation_method:
        return render_template('error.html',message='Missing Transportation Method')
    if transportation_method not in TRANSPORTATION_METHODS:
        return render_template('error.html',message='invalid Transportation Method')
    
    

    REGISTRANTS[name]=[airport,destination,transportation_method]
    

    ####  **NO MATTER WHAT, the condition loop will always be entered**
    if (list(REGISTRANTS.values())[0][0]=='Taipei Airport'):
        #print(list(REGISTRANTS.values())[0][0])
        if (list(REGISTRANTS.values())[0][1]) == 'Keelung' or 'New Taipei Municipality' or 'Taipei Municipality' or 'Taoyuan Municipality':
            return render_template('budget.html', message='Billing according to the skip meter')
        elif (list(REGISTRANTS.values())[0][1] == 'Hsinchu' )or (list(REGISTRANTS.values())[0][1] =='Miaoli'):
            #print('hi')
            return render_template('budget.html', message='1000TWD')


    return render_template('success.html', message='Input Successfully!')


@app.route('/success')
def success():
    return render_template('success.html', message='Input Successfully!', registrants=REGISTRANTS)