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import sqlite3
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import tkinter as tk
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import tkinter.messagebox as msgbox
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import json
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import subprocess
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window = tk.Tk()
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window.resizable(0, 0)
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window.title("停车场信息管理系统")
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# 窗口居中
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ww, wh = 400, 200
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sw, sh = window.winfo_screenwidth(), window.winfo_screenheight()
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x, y = (sw - ww) / 2, (sh - wh) / 2
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window.geometry("%dx%d+%d+%d" % (ww, wh, x, y))
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# 标签提示
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l_info = tk.Label(window, text="请输入想要查询的内容：", font=("宋体", 16))
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l_info.pack(padx=20, pady=10, anchor="nw")
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# 单行文本框输入信息
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var = tk.StringVar()
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e_info = tk.Entry(window, width=40, textvariable=var)
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e_info.place(x=50, y=60)
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# 单选框让用户自己选择查找的数据类型
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v = tk.IntVar()
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v.set(1)
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rb1 = tk.Radiobutton(window, text="ID", variable=v, value=1, takefocus=True)
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rb2 = tk.Radiobutton(window, text="NAME", variable=v, value=2, takefocus=True)
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rb3 = tk.Radiobutton(window, text="PHONE", variable=v, value=3, takefocus=True)
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rb1.place(x=20, y=100)
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rb2.place(x=60, y=100)
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rb3.place(x=130, y=100)
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# 检查和覆写临时存档文件（保存查找到的信息的id）
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def check_or_save(satisfied_id):
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if len(satisfied_id) == 0:
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msgbox.showinfo(message="查询失败，请检查输入信息")
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else:
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# 将数据写入临时存档文件sq_record中
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with open("sq_record.json", "w+") as fileId:
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temp_list = list(satisfied_id)
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json.dump(temp_list, fileId)
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# 连接新窗口
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subprocess.run(["python", "results_found.py"], check=True)
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def collect_ids(info, column_name, satisfied_id, cur):
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"""搜集符合条件的id"""
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cur.execute(f"select id from car where {column_name} like ?", ('%' + info + '%',))
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try:
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while True:
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satisfied_id.add(cur.fetchone()[0])
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except TypeError:
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msgbox.showinfo(message="搜索完毕")
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# 查找
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def select_info():
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# 获得输入框信息
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info = var.get()
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# 创建一个集合记录符合条件的id
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satisfied_id = set()
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# 检查输入框是否为空
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if info == "":
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msgbox.showerror(message="输入框为空")
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else:
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# 连接数据库
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con = sqlite3.connect("./car_info.db")
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cur = con.cursor()
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# 获得单选框的值，选择匹配类目,并匹配要查询的内容
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if v.get() == 1:
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collect_ids(info, "id", satisfied_id, cur)
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check_or_save(satisfied_id)
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elif v.get() == 2:
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collect_ids(info, "name", satisfied_id, cur)
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check_or_save(satisfied_id)
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elif v.get() == 3:
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collect_ids(info, "phone", satisfied_id, cur)
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check_or_save(satisfied_id)
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cur.close()
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con.close()
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btn_select = tk.Button(window, text="查询", width=10, command=select_info)
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btn_exit = tk.Button(window, text="退出", width=10, command=window.quit)
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btn_select.place(x=100, y=150)
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btn_exit.place(x=200, y=150)
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window.mainloop()
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