Flask：用户输入

Question

当用户提交输入时，我试图执行一个脚本，该脚本将用户的输入作为参数，并将用户重定向回主页。当我运行下面的脚本时，一切都是异常的。当我在web浏览器中点击submit时，没有数据被提交。在

from flask import Flask, render_template, redirect, request
from Index_generator import index_generator
from Yelp_api import request_yelp

@app.route('/home_city',methods = ['POST'])
def home_city():
    CITY=request.form['city']
    request_yelp(DEFAULT_LOCATION=CITY) #This function executes the script
    return redirect('/')

Answer 1

如果将url_for与redirect一起使用怎么办？在

from flask import Flask, render_template, redirect, request, url_for
from Index_generator import index_generator
from Yelp_api import request_yelp

@app.route('/', methods = ['GET'])
def home():
    return 'Hello World'

@app.route('/home_city',methods = ['POST'])
def home_city():
    CITY=request.form['city']
    request_yelp(DEFAULT_LOCATION=CITY) #This function executes the script
    return redirect(url_for('home'))