import pandas as pd
# 將下載好的文件命名為 'city_code.csv'，并刪除 header
file = pd.read_csv('city_code.csv')
# 選取需要的兩列信息
file = file.loc[:,['City_ID', 'City_CN']]
# 讀取前五行信息
file.head()

# 匹配 City_ID 中的數(shù)字
def convert(x):
 pat = re.compile('(\d+)')
 return pat.search(x).group()

file['City_ID_map'] = file['City_ID'].map(convert)

# 建立城市與代碼之間的映射關(guān)系
def city2id(file):
 code_dict = {}
 key = 'City_CN'
 value = 'City_ID_map'
 for k, v in zip(file[key], file[value]):
 code_dict[k] = v
 return code_dict
code_dict = city2id(file)

# 將所得的字典數(shù)據(jù)存儲為 txt 文件
import json
filename = 'city_code.txt'
with open(filename, 'w') as f:
 json.dump(code_dict, f)

with open(filename, 'r') as f:
 text = json.load(f)

# 天氣情況
data = info_json['data']
city = f"城市：{data['city']}\n"
today = data['forecast'][0]
date = f"日期：{today['date']}\n"
now = f"實時溫度：{data['wendu']}度\n"
temperature = f"溫度：{today['high']} {today['low']}\n"
fengxiang = f"風(fēng)向：{today['fengxiang']}\n"
type = f"天氣：{today['type']}\n"
tips = f"貼士：{data['ganmao']}\n"

def query_weather(code):
 # 模板網(wǎng)頁
 html = f'http://wthrcdn.etouch.cn/weather_mini?citykey=[code]'
 
 # 向網(wǎng)頁發(fā)起請求
 try:
 info = requests.get(html)
 info.encoding = 'utf-8'
 # 捕獲 ConnectinError 異常
 except requests.ConnectionError:
 raise 
 
 
 
 # 將獲取的數(shù)據(jù)轉(zhuǎn)換為 json 格式
 try:
 info_json = info.json()
 # 轉(zhuǎn)換失敗提示無法查詢
 except JSONDecodeError:
 return '無法查詢'

# 將 textEdit 設(shè)置為只讀模式
self.textEdit.setReadOnly(True)
# 將鼠標焦點放在 lineEdit 編輯欄里
self.lineEdit.setFocus()
# 獲取 lineEdit 中的文本
city = self.lineEdit.text()
# 設(shè)置文本
self.textEdit.setText(info)
# 清空文本
self.lineEdit.clear()

def keyPressEvent(self, e):
# 設(shè)置快捷鍵
 if e.key() == Qt.Key_Return:
 self.queryWeather()