天冷了，写一个天气查询应用（可视化界面），提醒 TA 注意保暖！

{
    "data": {
        "yesterday": {
            "date": "1日星期五",
            "high": "高温 17℃",
            "fx": "东北风",
            "low": "低温 8℃",
            "fl": "<![CDATA[<3级]]>",
            "type": "多云"
        },
        "city": "北京",
        "forecast": [
            {
                "date": "2日星期六",
                "high": "高温 14℃",
                "fengli": "<![CDATA[<3级]]>",
                "low": "低温 8℃",
                "fengxiang": "北风",
                "type": "小雨"
            },

        ],
        "ganmao": "昼夜温差较大，较易发生感冒，请适当增减衣服。体质较弱的朋友请注意防护。",
        "wendu": "12"
    },
    "status": 1000,
    "desc": "OK"
}

# 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)

pyuic5 -o destination.py source.ui

# 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)

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_())