Python实现天气查询工具：PyQt5与Tkinter双方案详解

PyQt5方案：UI设计与API数据获取

# cityCode 替换为具体某一个城市的对应编号
# 1、发送请求，获取数据
url = f'http://wthrcdn.etouch.cn/weather_mini?citykey={cityCode}'
res = requests.get(url)
res.encoding = 'utf-8'
res_json = res.json()
 
# 2、数据格式化
data = res_json['data']
city = f"城市：{data['city']}\n"  
# 字符串格式化的一种方式 f"{}" 通过字典传递值
 
today = data['forecast'][0]
date = f"日期：{today['date']}\n"  # \n 换行
now = f"实时温度：{data['wendu']}度\n"
temperature = f"温度：{today['high']} {today['low']}\n"
fengxiang = f"风向：{today['fengxiang']}\n"
type = f"天气：{today['type']}\n"
tips = f"贴士：{data['ganmao']}\n"
 
result = city + date + now + temperature + fengxiang + type + tips
 
print(result)

信号与槽机制连接

# 1、清空按钮与对应函数连接
clearBtn.clicked.connect(widget.clearResult)
 
# 2、查询按钮与对应函数连接
queryBtn.clicked.connect(widget.queryWeather)

主窗口类实现

import sys     
from PyQt5.QtWidgets import QApplication , QMainWindow
from WeatherWin import Ui_widget
import requests
import json
 
class MainWindow(QMainWindow ):
    def __init__(self, parent=None):    
        super(MainWindow, self).__init__(parent)
        self.ui = Ui_widget()
        self.ui.setupUi(self)
 
        # 通过文本框传入想要搜索的城市名称:天津
        cityName = self.ui.weatherComboBox.currentText()
 
        # 获取天气部分省略
 
        # 在文本框显示查询结果
        self.ui.resultText.setText(result)
 
    def clearResult(self):
        print('* clearResult  ')
        self.ui.resultText.clear()  
 
if __name__=="__main__":  
    app = QApplication(sys.argv)  
    win = MainWindow()  
    win.show()  
    sys.exit(app.exec_())

Tkinter方案：基础界面与数据解析

from tkinter import *
import urllib.request
import gzip
import json
from tkinter import messagebox
root = Tk()
def main():
  # 输入窗口
  root.title('Python学习交流群：973783996') # 窗口标题
  Label(root, text='请输入城市').grid(row=0, column=0) # 设置标签并调整位置
  enter = Entry(root) # 输入框
  enter.grid(row=0, column=1, padx=20, pady=20) # 调整位置
  enter.delete(0, END) # 清空输入框
  enter.insert(0, 'Python学习交流群：973783996') # 设置默认文本
  # enter_text = enter.get()#获取输入框的内容
   running = 1
   def get_weather_data(): # 获取网站数据
    city_name = enter.get() # 获取输入框的内容
    url1 = 'http://wthrcdn.etouch.cn/weather_mini?city=' + urllib.parse.quote(city_name)
    url2 = 'http://wthrcdn.etouch.cn/weather_mini?citykey=101010100'
    # 网址1只需要输入城市名，网址2需要输入城市代码
    # print(url1)
    weather_data = urllib.request.urlopen(url1).read()
    # 读取网页数据
    weather_data = gzip.decompress(weather_data).decode('utf-8')
    # 解压网页数据
    weather_dict = json.loads(weather_data)
    # 将json数据转换为dict数据
    if weather_dict.get('desc') == 'invilad-citykey':
      print(messagebox.askokcancel("xing", "你输入的城市名有误，或者天气中心未收录你所在城市"))
    else:
      # print(messagebox.askokcancel('xing','bingguo'))
      show_data(weather_dict, city_name)  def show_data(weather_dict, city_name): # 显示数据
    forecast = weather_dict.get('data').get('forecast') # 获取数据块
    root1 = Tk() # 副窗口
    root1.geometry('650x280') # 修改窗口大小
    root1.title(city_name + '天气状况') # 副窗口标题
     # 设置日期列表
    for i in range(5): # 将每一天的数据放入列表中
      LANGS = [(forecast[i].get('date'), '日期'),
           (forecast[i].get('fengxiang'), '风向'),
           (str(forecast[i].get('fengji')), '风级'),
           (forecast[i].get('high'), '最高温'),
           (forecast[i].get('low'), '最低温'),
           (forecast[i].get('type'), '天气')]
      group = LabelFrame(root1, text='天气状况', padx=0, pady=0) # 框架
      group.pack(padx=11, pady=0, side=LEFT) # 放置框架
      for lang, value in LANGS: # 将数据放入框架中
        c = Label(group, text=value + ': ' + lang)
        c.pack(anchor=W)
    Label(root1, text='今日' + weather_dict.get('data').get('ganmao'),
       fg='green').place(x=40, y=20, height=40) # 温馨提示
    Label(root1, text="StarMan: 49star.com", fg="green", bg="yellow").place(x=10, y=255, width=125,                              height=20) # 作者网站
    Button(root1, text='确认并退出', width=10, command=root1.quit).place(x=500, y=230, width=80, height=40) # 退出按钮
    root1.mainloop() 
  # 布置按键
  Button(root, text="确认", width=10, command=get_weather_data) \
    .grid(row=3, column=0, sticky=W, padx=10, pady=5)
  Button(root, text='退出', width=10, command=root.quit) \
    .grid(row=3, column=1, sticky=E, padx=10, pady=5)
  if running == 1:
    root.mainloop() 
 if __name__ == '__main__':
  main()