用api和tkinter做一个有界面的查询天气软件

好的，以下是基于聚合数据API和Tkinter库实现的天气查询软件代码：

import requests
import tkinter as tk

# 聚合数据API Key
API_KEY = "您的API Key"

def get_weather(city):
    url = "http://apis.juhe.cn/simpleWeather/query"
    params = {
        "city": city,
        "key": API_KEY
    }
    response = requests.get(url, params=params)
    data = response.json()
    return data

class WeatherApp:
    def __init__(self, master):
        self.master = master
        master.title("天气查询")
        
        self.city_label = tk.Label(master, text="城市：")
        self.city_label.grid(row=0, column=0)

        self.city_entry = tk.Entry(master)
        self.city_entry.grid(row=0, column=1)

        self.query_button = tk.Button(master, text="查询", command=self.query_weather)
        self.query_button.grid(row=0, column=2)

        self.result_label = tk.Label(master, text="")
        self.result_label.grid(row=1, column=0, columnspan=3)

    def query_weather(self):
        city = self.city_entry.get()
        if not city:
            tk.messagebox.showerror("错误", "请输入城市名！")
            return
            
        data = get_weather(city)
        if data["error_code"] != 0:
            tk.messagebox.showerror("错误", data["reason"])
            return
        
        today = data["result"]["realtime"]
        temperature = today["temperature"]
        weather = today["info"]
        direct = today["direct"]
        power = today["power"]
        humidity = today["humidity"]
        
        result_text = f"温度：{temperature}℃\n天气：{weather}\n风向：{direct}\n风力：{power}\n湿度：{humidity}"
        self.result_label.config(text=result_text)

root = tk.Tk()
app = WeatherApp(root)
root.mainloop()

在运行程序之前，需要先在聚合数据官网申请一个API Key，并将其替换成代码中的`API_KEY`变量。另外，还需要安装`requests`库。

运行程序后，在输入框中输入要查询的城市名称，点击“查询”按钮即可显示该城市的天气信息。如果查询出错或者输入内容为空，则会弹出相应的错误提示框。