import tkinter as tk from tkinter import ttk, messagebox import requests import threading from datetime import datetime # ========== 城市经纬度表（常用城市） ========== CITY_COORDS = { "北京": (39.9042, 116.4074), "上海": (31.2304, 121.4737), "广州": (23.1291, 113.2644), "深圳": (22.5431, 114.0579), "天津": (39.3434, 117.3616), "重庆": (29.5630, 106.5516), "杭州": (30.2741, 120.1551), "南京": (32.0603, 118.7969), "武汉": (30.5928, 114.3055), "成都": (30.5728, 104.0668), "西安": (34.3416, 108.9398), "长沙": (28.2282, 112.9388), "郑州": (34.7466, 113.6254), "济南": (36.6512, 117.1201), "青岛": (36.0671, 120.3826), "沈阳": (41.8057, 123.4315), "哈尔滨": (45.8038, 126.5349), "长春": (43.8171, 125.3235), "石家庄": (38.0428, 114.5149), "太原": (37.8706, 112.5489), "合肥": (31.8206, 117.2272), "福州": (26.0745, 119.2965), "厦门": (24.4798, 118.0894), "南昌": (28.6820, 115.8579), "昆明": (24.8801, 102.8329), "贵阳": (26.6470, 106.6302), "南宁": (22.8170, 108.3665), "海口": (20.0444, 110.1999), "兰州": (36.0611, 103.8343), "西宁": (36.6171, 101.7782), "银川": (38.4872, 106.2309), "乌鲁木齐": (43.8256, 87.6168), "拉萨": (29.6500, 91.1000), "呼和浩特": (40.8414, 111.7519), } # 天气代码 -> 中文描述 WEATHER_CODES = { 0: "晴", 1: "多云", 2: "多云", 3: "阴", 45: "雾", 48: "雾凇", 51: "毛毛雨", 53: "小雨", 55: "中雨", 61: "小雨", 63: "中雨", 65: "大雨", 71: "小雪", 73: "中雪", 75: "大雪", 80: "阵雨", 81: "强阵雨", 82: "暴雨", 95: "雷阵雨", 96: "雷阵雨伴冰雹", 99: "强雷暴", } class WeatherApp: def __init__(self, root): self.root = root self.root.title("天气预报 - Open-Meteo") self.root.geometry("620x640") self.root.resizable(False, False) self._build_ui() def _build_ui(self): # 顶部：城市选择 + 查询按钮 top = ttk.Frame(self.root, padding=10) top.pack(fill="x") ttk.Label(top, text="选择城市：").pack(side="left") self.city_var = tk.StringVar(value="北京") self.city_combo = ttk.Combobox(top, textvariable=self.city_var, values=list(CITY_COORDS.keys()), state="readonly", width=12) self.city_combo.pack(side="left", padx=5) ttk.Button(top, text="查询", command=self.query_weather).pack(side="left", padx=5) ttk.Button(top, text="刷新", command=self.query_weather).pack(side="left") # 当前天气 self.current_frame = ttk.LabelFrame(self.root, text="当前天气", padding=10) self.current_frame.pack(fill="x", padx=10, pady=5) self.current_label = ttk.Label(self.current_frame, text="点击查询获取天气", font=("微软雅黑", 12), justify="left") self.current_label.pack(anchor="w") # 未来几天 self.forecast_frame = ttk.LabelFrame(self.root, text="未来 7 天", padding=10) self.forecast_frame.pack(fill="both", expand=True, padx=10, pady=5) columns = ("date", "weather", "temp_max", "temp_min", "rain") self.tree = ttk.Treeview(self.forecast_frame, columns=columns, show="headings", height=8) self.tree.heading("date", text="日期") self.tree.heading("weather", text="天气") self.tree.heading("temp_max", text="最高温") self.tree.heading("temp_min", text="最低温") self.tree.heading("rain", text="降水概率") self.tree.column("date", width=100, anchor="center") self.tree.column("weather", width=120, anchor="center") self.tree.column("temp_max", width=90, anchor="center") self.tree.column("temp_min", width=90, anchor="center") self.tree.column("rain", width=100, anchor="center") self.tree.pack(fill="both", expand=True) # 状态栏 self.status = ttk.Label(self.root, text="就绪", relief="sunken", anchor="w") self.status.pack(fill="x", side="bottom") def set_status(self, text): self.status.config(text=text) self.root.update_idletasks() def query_weather(self): city = self.city_var.get() coords = CITY_COORDS.get(city) if not coords: messagebox.showerror("错误", "未找到该城市") return threading.Thread(target=self._fetch_weather, args=(city, coords[0], coords[1]), daemon=True).start() def _fetch_weather(self, city, lat, lon): self.root.after(0, lambda: self.set_status(f"正在查询 {city} 的天气...")) try: url = "https://api.open-meteo.com/v1/forecast" params = { "latitude": lat, "longitude": lon, "current": "temperature_2m,relative_humidity_2m,wind_speed_10m,weather_code", "daily": "weather_code,temperature_2m_max,temperature_2m_min,precipitation_probability_max", "timezone": "Asia/Shanghai", "forecast_days": 7, } r = requests.get(url, params=params, timeout=15) r.raise_for_status() data = r.json() self.root.after(0, self._update_ui, city, data) except Exception as e: err_msg = str(e) self.root.after(0, lambda msg=err_msg: self.set_status(f"查询失败：{msg}")) self.root.after(0, lambda msg=err_msg: messagebox.showerror("错误", f"查询失败：\n{msg}")) def _update_ui(self, city, data): current = data.get("current", {}) daily = data.get("daily", {}) # 当前天气 code = current.get("weather_code", -1) weather_text = WEATHER_CODES.get(code, f"未知({code})") text = f"城市：{city}\n" text += f"温度：{current.get('temperature_2m', 'N/A')}°C\n" text += f"天气：{weather_text}\n" text += f"湿度：{current.get('relative_humidity_2m', 'N/A')}%\n" text += f"风速：{current.get('wind_speed_10m', 'N/A')} km/h\n" text += f"更新时间：{current.get('time', 'N/A')}" self.current_label.config(text=text) # 清空表格 for row in self.tree.get_children(): self.tree.delete(row) # 7 天预报 dates = daily.get("time", []) codes = daily.get("weather_code", []) t_max = daily.get("temperature_2m_max", []) t_min = daily.get("temperature_2m_min", []) rains = daily.get("precipitation_probability_max", []) for i in range(len(dates)): date = dates[i] code = codes[i] if i < len(codes) else -1 weather = WEATHER_CODES.get(code, f"未知({code})") tmax = t_max[i] if i < len(t_max) else "N/A" tmin = t_min[i] if i < len(t_min) else "N/A" rain = rains[i] if i < len(rains) else "N/A" self.tree.insert("", "end", values=(date, weather, f"{tmax}°C", f"{tmin}°C", f"{rain}%")) self.set_status(f"查询完成 - {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}") if __name__ == "__main__": root = tk.Tk() app = WeatherApp(root) root.mainloop()