实现输入城市，显示天气功能

import pandas as pd
import Charpter2.Weather_forecast as C2W

# 读取xlsx格式的文件，使用read_excel方法
# 注意！需要有openpyxl库
'''
本函数实现了在excel文件里面
寻找城市对应的行政区划编码功能
'''
def ID_Find(city):
    # 如果报错是xlrd >=2.1.0xxxx
    weather_district_data = pd.read_excel("weather_district_id.xlsx",engine="openpyxl")
    index = 0 # 索引
    for district in weather_district_data["district"]:
        index = index + 1
        if city == district: # 查找到城市
            break
    return weather_district_data["districtcode"][index-1]
if __name__ == '__main__':
    city = input("请输入您想查找的城市天气:")
    code = ID_Find(city)
    C2W.Weather_forcast(city=city,district_code=code) #上一段代码所在包的调用