深铁城际.py

import tkinter as tk
from tkinter import ttk, scrolledtext, messagebox

class ShenzhenIntercityQuery:
    """深圳都市圈城际铁路里程查询与票价计算GUI类（最终修复版）"""
    
    def __init__(self, root: tk.Tk):
        # 初始化主窗口
        self.root = root
        self.root.title("深圳都市圈城际铁路里程查询系统")
        self.root.geometry("750x520")
        self.root.resizable(False, False)
        
        # 核心数据：里程字典（单位：公里）
        self.station_distances: dict[str, dict[str, float]] = self._load_station_distances()
        
        # 线路-站点映射（按实际运营线路分类）
        self.lines = {
            "深大城际": ["机场北", "机场东", "黄麻布", "石岩", "龙胜", "民治北", "五和", "白泥坑", "大运", "坪山", "聚龙"],
            "深惠城际": ["前保", "怡海", "鲤鱼门", "西丽", "深圳北", "五和", "平湖", "凤岗", "大运北", "龙城", "坪地"],
            "龙大城际（大鹏支线）": ["龙城", "坪山", "燕子湖", "葵涌", "大鹏", "新大"],
            "全部城际":["机场北", "机场东", "黄麻布", "石岩", "龙胜", "民治北", "五和", "白泥坑", "大运", "坪山", "聚龙", "前保", "怡海", "鲤鱼门", "西丽", "深圳北", "平湖", "凤岗", "大运北", "龙城", "坪地", "燕子湖", "葵涌", "大鹏", "新大"]
        }
        
        # 票价标准（支持设置修改，初始默认值）
        self.fare_standards = [
            {"rate": 0.45, "min_fare": 4, "desc": "0.45元/公里（最低4元）"},
            {"rate": 0.59, "min_fare": 5, "desc": "0.59元/公里（最低5元）"}
        ]
        
        # 初始化变量
        self.start_line_var = tk.StringVar()  # 起点线路变量
        self.end_line_var = tk.StringVar()    # 终点线路变量
        self.start_var = tk.StringVar()       # 起点站变量
        self.end_var = tk.StringVar()         # 终点站变量
        
        # 构建GUI界面
        self._setup_ui()
    
    def _load_station_distances(self) -> dict[str, dict[str, float]]:
        """加载里程数据（保持原有数据不变）"""
        return {
            "机场北": {
                "机场北": 0.00, "机场东": 3.01, "黄麻布": 8.78, "石岩": 16.89, "龙胜": 26.06, "民治北": 28.89, 
                "五和": 31.56, "白泥坑": 41.91, "大运": 50.67, "坪山": 61.41, "聚龙": 67.79,
                "前保": 57.49, "怡海": 55.29, "鲤鱼门": 53.32, "西丽": 46.83, "深圳北": 35.43, 
                "平湖": 41.99, "凤岗": 46.59, "大运北": 52.08, "龙城": 56.13, "坪地": 63.62,
                "燕子湖": 67.46, "葵涌": 73.69, "大鹏": 81.01, "新大": 88.60
            },
            "机场东": {
                "机场北": 3.01, "机场东": 0.00, "黄麻布": 5.77, "石岩": 13.88, "龙胜": 23.06, "民治北": 25.88, 
                "五和": 28.56, "白泥坑": 38.91, "大运": 47.66, "坪山": 58.40, "聚龙": 64.78,
                "前保": 54.48, "怡海": 52.29, "鲤鱼门": 50.31, "西丽": 43.83, "深圳北": 32.42, 
                "平湖": 38.98, "凤岗": 43.59, "大运北": 49.07, "龙城": 53.13, "坪地": 60.61,
                "燕子湖": 64.46, "葵涌": 70.69, "大鹏": 78.00, "新大": 85.59
            },
            "黄麻布": {
                "机场北": 8.78, "机场东": 5.77, "黄麻布": 0.00, "石岩": 8.11, "龙胜": 17.28, "民治北": 20.11, 
                "五和": 22.78, "白泥坑": 33.14, "大运": 41.89, "坪山": 52.63, "聚龙": 59.01,
                "前保": 48.71, "怡海": 46.51, "鲤鱼门": 44.54, "西丽": 38.05, "深圳北": 26.65, 
                "平湖": 22.78, "凤岗": 33.21, "大运北": 37.81, "龙城": 43.30, "坪地": 54.84,
                "燕子湖": 47.35, "葵涌": 52.63, "大鹏": 58.69, "新大": 64.92
            },
            "石岩": {
                "机场北": 16.89, "机场东": 13.88, "黄麻布": 8.11, "石岩": 0.00, "龙胜": 9.17, "民治北": 12.00, 
                "五和": 14.67, "白泥坑": 25.02, "大运": 33.78, "坪山": 44.52, "聚龙": 50.90,
                "前保": 40.59, "怡海": 38.40, "鲤鱼门": 36.43, "西丽": 29.94, "深圳北": 18.53, 
                "平湖": 29.70, "凤岗": 29.70, "大运北": 35.91, "龙城": 39.24, "坪地": 47.53,
                "燕子湖": 36.73, "葵涌": 44.52, "大鹏": 50.57, "新大": 56.80
            },
            "龙胜": {
                "机场北": 26.06, "机场东": 23.06, "黄麻布": 17.28, "石岩": 9.17, "龙胜": 0.00, "民治北": 2.83, 
                "五和": 5.50, "白泥坑": 15.85, "大运": 24.61, "坪山": 35.35, "聚龙": 41.72,
                "前保": 31.42, "怡海": 29.23, "鲤鱼门": 27.26, "西丽": 20.77, "深圳北": 9.36, 
                "平湖": 20.53, "凤岗": 20.53, "大运北": 26.01, "龙城": 29.19, "坪地": 37.47,
                "燕子湖": 27.24, "葵涌": 35.35, "大鹏": 41.40, "新大": 47.63
            },
            "民治北": {
                "机场北": 28.89, "机场东": 25.88, "黄麻布": 20.11, "石岩": 12.00, "龙胜": 2.83, "民治北": 0.00, 
                "五和": 2.67, "白泥坑": 13.03, "大运": 21.78, "坪山": 32.52, "聚龙": 38.90,
                "前保": 28.60, "怡海": 26.40, "鲤鱼门": 24.43, "西丽": 17.94, "深圳北": 6.54, 
                "平湖": 17.03, "凤岗": 17.03, "大运北": 23.19, "龙城": 27.24, "坪地": 34.73,
                "燕子湖": 27.24, "葵涌": 35.35, "大鹏": 41.40, "新大": 47.63
            },
            "五和": {
                "机场北": 31.56, "机场东": 28.56, "黄麻布": 22.78, "石岩": 14.67, "龙胜": 5.50, "民治北": 2.67, 
                "五和": 0.00, "白泥坑": 10.35, "大运": 19.11, "坪山": 29.85, "聚龙": 36.22,
                "前保": 26.92, "怡海": 24.83, "鲤鱼门": 22.76, "西丽": 15.27, "深圳北": 3.86, 
                "平湖": 10.35, "凤岗": 10.35, "大运北": 20.51, "龙城": 24.57, "坪地": 32.06,
                "燕子湖": 24.57, "葵涌": 32.52, "大鹏": 38.58, "新大": 44.80
            },
            "白泥坑": {
                "机场北": 41.91, "机场东": 38.91, "黄麻布": 33.14, "石岩": 25.02, "龙胜": 15.85, "民治北": 13.03, 
                "五和": 10.35, "白泥坑": 0.00, "大运": 8.76, "坪山": 19.50, "聚龙": 25.87,
                "前保": 15.85, "怡海": 13.73, "鲤鱼门": 11.66, "西丽": 5.26, "深圳北": 14.22, 
                "平湖": 19.11, "凤岗": 25.38, "大运北": 30.87, "龙城": 35.92, "坪地": 43.71,
                "燕子湖": 36.22, "葵涌": 44.30, "大鹏": 50.36, "新大": 56.69
            },
            "大运": {
                "机场北": 50.67, "机场东": 47.66, "黄麻布": 41.89, "石岩": 33.78, "龙胜": 24.61, "民治北": 21.78, 
                "五和": 19.11, "白泥坑": 8.76, "大运": 0.00, "坪山": 10.74, "聚龙": 17.12,
                "前保": 6.38, "怡海": 4.24, "鲤鱼门": 2.18, "西丽": 4.52, "深圳北": 15.03, 
                "平湖": 25.38, "凤岗": 25.38, "大运北": 30.87, "龙城": 35.92, "坪地": 43.71,
                "燕子湖": 36.22, "葵涌": 44.30, "大鹏": 50.36, "新大": 56.69
            },
            "坪山": {
                "机场北": 61.41, "机场东": 58.40, "黄麻布": 52.63, "石岩": 44.52, "龙胜": 35.35, "民治北": 32.52, 
                "五和": 29.85, "白泥坑": 19.50, "大运": 10.74, "坪山": 0.00, "聚龙": 6.38,
                "前保": 55.77, "怡海": 53.58, "鲤鱼门": 51.49, "西丽": 45.04, "深圳北": 22.97, 
                "平湖": 29.57, "凤岗": 29.57, "大运北": 35.05, "龙城": 40.09, "坪地": 47.88,
                "燕子湖": 40.23, "葵涌": 48.31, "大鹏": 54.37, "新大": 60.70
            },
            "聚龙": {
                "机场北": 67.79, "机场东": 64.78, "黄麻布": 59.01, "石岩": 50.90, "龙胜": 41.72, "民治北": 38.90, 
                "五和": 36.22, "白泥坑": 25.87, "大运": 17.12, "坪山": 6.38, "聚龙": 0.00,
                "前保": 62.15, "怡海": 59.95, "鲤鱼门": 57.98, "西丽": 51.49, "深圳北": 40.09, 
                "平湖": 36.22, "凤岗": 29.81, "大运北": 35.35, "龙城": 40.39, "坪地": 48.27,
                "燕子湖": 40.55, "葵涌": 48.63, "大鹏": 54.69, "新大": 61.02
            },
            "前保": {
                "机场北": 57.49, "机场东": 54.48, "黄麻布": 48.71, "石岩": 40.59, "龙胜": 31.42, "民治北": 28.60, 
                "五和": 26.92, "白泥坑": 15.85, "大运": 6.38, "坪山": 55.77, "聚龙": 62.15,
                "前保": 0.00, "怡海": 2.19, "鲤鱼门": 4.17, "西丽": 10.65, "深圳北": 22.06, 
                "平湖": 29.52, "凤岗": 36.35, "大运北": 40.95, "龙城": 46.44, "坪地": 54.09,
                "燕子湖": 46.33, "葵涌": 53.80, "大鹏": 59.96, "新大": 66.29
            },
            "怡海": {
                "机场北": 55.29, "机场东": 52.29, "黄麻布": 46.51, "石岩": 38.40, "龙胜": 29.23, "民治北": 26.40, 
                "五和": 24.83, "白泥坑": 13.73, "大运": 4.24, "坪山": 53.58, "聚龙": 59.95,
                "前保": 2.19, "怡海": 0.00, "鲤鱼门": 1.98, "西丽": 8.46, "深圳北": 19.87, 
                "平湖": 27.37, "凤岗": 34.16, "大运北": 38.76, "龙城": 44.24, "坪地": 51.87,
                "燕子湖": 43.76, "葵涌": 51.23, "大鹏": 57.39, "新大": 63.72
            },
            "鲤鱼门": {
                "机场北": 53.32, "机场东": 50.31, "黄麻布": 44.54, "石岩": 36.43, "龙胜": 27.26, "民治北": 24.43, 
                "五和": 22.76, "白泥坑": 11.66, "大运": 2.18, "坪山": 51.49, "聚龙": 57.98,
                "前保": 4.17, "怡海": 1.98, "鲤鱼门": 0.00, "西丽": 6.49, "深圳北": 17.89, 
                "平湖": 25.38, "凤岗": 32.18, "大运北": 36.79, "龙城": 42.27, "坪地": 49.84,
                "燕子湖": 41.73, "葵涌": 49.10, "大鹏": 55.26, "新大": 61.59
            },
            "西丽": {
                "机场北": 46.83, "机场东": 43.83, "黄麻布": 38.05, "石岩": 29.94, "龙胜": 20.77, "民治北": 17.94, 
                "五和": 15.27, "白泥坑": 5.26, "大运": 4.52, "坪山": 45.04, "聚龙": 51.49,
                "前保": 10.65, "怡海": 8.46, "鲤鱼门": 6.49, "西丽": 0.00, "深圳北": 11.41, 
                "平湖": 17.89, "凤岗": 24.67, "大运北": 29.23, "龙城": 34.83, "坪地": 42.31,
                "燕子湖": 34.20, "葵涌": 41.67, "大鹏": 47.83, "新大": 54.16
            },
            "深圳北": {
                "机场北": 35.43, "机场东": 32.42, "黄麻布": 26.65, "石岩": 18.53, "龙胜": 9.36, "民治北": 6.54, 
                "五和": 3.86, "白泥坑": 14.22, "大运": 15.03, "坪山": 40.09, "聚龙": 51.49,
                "前保": 22.06, "怡海": 19.87, "鲤鱼门": 17.89, "西丽": 11.41, "深圳北": 0.00, 
                "平湖": 3.86, "凤岗": 14.29, "大运北": 24.38, "龙城": 28.43, "坪地": 35.92,
                "燕子湖": 28.43, "葵涌": 33.71, "大鹏": 39.77, "新大": 45.99
            },
            "平湖": {
                "机场北": 46.59, "机场东": 43.59, "黄麻布": 37.81, "石岩": 29.70, "龙胜": 20.53, "民治北": 17.70, 
                "五和": 10.35, "白泥坑": 25.38, "大运": 25.38, "坪山": 29.57, "聚龙": 36.22,
                "前保": 34.16, "怡海": 32.18, "鲤鱼门": 30.30, "西丽": 24.67, "深圳北": 14.29, 
                "平湖": 0.00, "凤岗": 5.48, "大运北": 9.54, "龙城": 17.03, "坪地": 24.57,
                "燕子湖": 17.03, "葵涌": 24.89, "大鹏": 31.12, "新大": 38.43
            },
            "凤岗": {
                "机场北": 46.59, "机场东": 43.59, "黄麻布": 37.81, "石岩": 29.70, "龙胜": 20.53, "民治北": 17.70, 
                "五和": 15.03, "白泥坑": 25.38, "大运": 25.38, "坪山": 29.57, "聚龙": 29.81,
                "前保": 36.35, "怡海": 34.16, "鲤鱼门": 32.18, "西丽": 24.67, "深圳北": 18.89, 
                "平湖": 5.48, "凤岗": 0.00, "大运北": 4.00, "龙城": 11.54, "坪地": 19.03,
                "燕子湖": 11.54, "葵涌": 18.83, "大鹏": 24.89, "新大": 31.12
            },
            "大运北": {
                "机场北": 52.08, "机场东": 49.07, "黄麻布": 43.30, "石岩": 35.29, "龙胜": 26.01, "民治北": 23.19, 
                "五和": 20.51, "白泥坑": 30.87, "大运": 25.38, "坪山": 35.35, "聚龙": 40.39,
                "前保": 40.95, "怡海": 38.76, "鲤鱼门": 36.79, "西丽": 29.23, "深圳北": 24.38, 
                "平湖": 9.54, "凤岗": 4.00, "大运北": 0.00, "龙城": 7.54, "坪地": 15.03,
                "燕子湖": 7.54, "葵涌": 14.83, "大鹏": 20.90, "新大": 28.12
            },
            "龙城": {
                "机场北": 56.13, "机场东": 53.13, "黄麻布": 47.35, "石岩": 39.24, "龙胜": 29.19, "民治北": 27.24, 
                "五和": 24.57, "白泥坑": 35.92, "大运": 40.39, "坪山": 47.88, "聚龙": 54.09,
                "前保": 46.44, "怡海": 44.24, "鲤鱼门": 42.27, "西丽": 34.83, "深圳北": 28.43, 
                "平湖": 17.03, "凤岗": 11.54, "大运北": 7.54, "龙城": 0.00, "坪地": 7.49,
                "燕子湖": 0.00, "葵涌": 7.49, "大鹏": 13.66, "新大": 20.90
            },
            "坪地": {
                "机场北": 63.62, "机场东": 60.61, "黄麻布": 54.84, "石岩": 47.53, "龙胜": 37.47, "民治北": 34.73, 
                "五和": 32.06, "白泥坑": 43.71, "大运": 48.27, "坪山": 55.77, "聚龙": 63.80,
                "前保": 54.09, "怡海": 51.87, "鲤鱼门": 49.84, "西丽": 42.31, "深圳北": 35.92, 
                "平湖": 24.57, "凤岗": 19.03, "大运北": 15.03, "龙城": 7.49, "坪地": 0.00,
                "燕子湖": 7.49, "葵涌": 14.96, "大鹏": 21.13, "新大": 28.39
            },
            "燕子湖": {
                "机场北": 67.46, "机场东": 64.46, "黄麻布": 47.35, "石岩": 40.23, "龙胜": 27.24, "民治北": 27.24, 
                "五和": 24.57, "白泥坑": 36.22, "大运": 40.39, "坪山": 40.23, "聚龙": 46.61,
                "前保": 46.33, "怡海": 43.76, "鲤鱼门": 41.73, "西丽": 34.20, "深圳北": 28.43, 
                "平湖": 17.03, "凤岗": 11.54, "大运北": 7.54, "龙城": 0.00, "坪地": 7.49,
                "燕子湖": 0.00, "葵涌": 7.49, "大鹏": 13.66, "新大": 20.90
            },
            "葵涌": {
                "机场北": 73.69, "机场东": 70.69, "黄麻布": 52.63, "石岩": 44.52, "龙胜": 35.35, "民治北": 35.35, 
                "五和": 32.52, "白泥坑": 44.30, "大运": 50.36, "坪山": 48.31, "聚龙": 54.69,
                "前保": 53.80, "怡海": 51.23, "鲤鱼门": 49.10, "西丽": 41.67, "深圳北": 33.71, 
                "平湖": 29.85, "凤岗": 18.83, "大运北": 14.83, "龙城": 7.49, "坪地": 14.96,
                "燕子湖": 7.49, "葵涌": 0.00, "大鹏": 6.23, "新大": 13.55
            },
            "大鹏": {
                "机场北": 81.01, "机场东": 78.00, "黄麻布": 58.69, "石岩": 50.57, "龙胜": 41.40, "民治北": 41.40, 
                "五和": 38.58, "白泥坑": 50.36, "大运": 56.80, "坪山": 54.37, "聚龙": 59.96,
                "前保": 59.96, "怡海": 57.39, "鲤鱼门": 55.26, "西丽": 47.83, "深圳北": 39.77, 
                "平湖": 31.12, "凤岗": 24.89, "大运北": 20.90, "龙城": 13.66, "坪地": 21.13,
                "燕子湖": 13.66, "葵涌": 6.23, "大鹏": 0.00, "新大": 7.59
            },
            "新大": {
                "机场北": 88.60, "机场东": 85.59, "黄麻布": 64.92, "石岩": 56.80, "龙胜": 47.63, "民治北": 47.63, 
                "五和": 44.80, "白泥坑": 56.69, "大运": 60.70, "坪山": 60.70, "聚龙": 66.29,
                "前保": 66.29, "怡海": 63.72, "鲤鱼门": 61.59, "西丽": 54.16, "深圳北": 45.99, 
                "平湖": 38.43, "凤岗": 31.12, "大运北": 28.12, "龙城": 20.90, "坪地": 28.39,
                "燕子湖": 20.90, "葵涌": 13.55, "大鹏": 7.59, "新大": 0.00
            }
        }
    
    def _setup_ui(self) -> None:
        """构建GUI界面组件"""
        # 标题标签
        title_label = tk.Label(
            self.root, 
            text="深圳都市圈城际铁路里程与票价查询",
            font=("微软雅黑", 14, "bold"),
            fg="#2c3e50"
        )
        title_label.grid(row=0, column=0, columnspan=4, pady=15)
        
        # 起点区域：线路+站点选择
        start_line_label = tk.Label(self.root, text="起点线路：", font=("微软雅黑", 11), fg="#34495e")
        start_line_label.grid(row=1, column=0, padx=(30, 5), pady=10, sticky="w")
        self.start_line_combo = ttk.Combobox(
            self.root, textvariable=self.start_line_var,
            values=list(self.lines.keys()), width=15, font=("微软雅黑", 10)
        )
        self.start_line_combo.grid(row=1, column=1, padx=5, pady=10, sticky="w")
        self.start_line_combo.current(0)
        self.start_line_combo.bind("<<ComboboxSelected>>", self._update_start_stations)
        
        start_station_label = tk.Label(self.root, text="起点站：", font=("微软雅黑", 11), fg="#34495e")
        start_station_label.grid(row=1, column=2, padx=(30, 5), pady=10, sticky="w")
        self.start_station_combo = ttk.Combobox(
            self.root, textvariable=self.start_var, width=20, font=("微软雅黑", 10)
        )
        self.start_station_combo.grid(row=1, column=3, padx=(5, 30), pady=10, sticky="w")
        self._update_start_stations()  # 初始化起点站选项
        
        # 终点区域：线路+站点选择
        end_line_label = tk.Label(self.root, text="终点线路：", font=("微软雅黑", 11), fg="#34495e")
        end_line_label.grid(row=2, column=0, padx=(30, 5), pady=10, sticky="w")
        self.end_line_combo = ttk.Combobox(
            self.root, textvariable=self.end_line_var,
            values=list(self.lines.keys()), width=15, font=("微软雅黑", 10)
        )
        self.end_line_combo.grid(row=2, column=1, padx=5, pady=10, sticky="w")
        self.end_line_combo.current(1)
        self.end_line_combo.bind("<<ComboboxSelected>>", self._update_end_stations)
        
        end_station_label = tk.Label(self.root, text="终点站：", font=("微软雅黑", 11), fg="#34495e")
        end_station_label.grid(row=2, column=2, padx=(30, 5), pady=10, sticky="w")
        self.end_station_combo = ttk.Combobox(
            self.root, textvariable=self.end_var, width=20, font=("微软雅黑", 10)
        )
        self.end_station_combo.grid(row=2, column=3, padx=(5, 30), pady=10, sticky="w")
        self._update_end_stations()  # 初始化终点站选项
        
        # 功能按钮：查询+设置
        query_btn = tk.Button(
            self.root, text="查询", command=self._on_query,
            font=("微软雅黑", 11, "bold"), bg="#34495e", fg="white",
            width=12, relief=tk.RAISED, activebackground="#2c3e50"
        )
        query_btn.grid(row=3, column=1, pady=10, sticky="e")
        
        setting_btn = tk.Button(
            self.root, text="设置票价规则", command=self._open_setting_window,
            font=("微软雅黑", 11, "bold"), bg="#27ae60", fg="white",
            width=12, relief=tk.RAISED, activebackground="#2ecc71"
        )
        setting_btn.grid(row=3, column=2, pady=10, sticky="w", padx=(20, 0))
        
        # 结果显示区域
        result_title = tk.Label(
            self.root, text="查询结果", font=("微软雅黑", 11, "bold"), fg="#2c3e50"
        )
        result_title.grid(row=4, column=0, columnspan=4, padx=30, sticky="w", pady=(5, 0))
        
        self.result_text = scrolledtext.ScrolledText(
            self.root, width=85, height=10, font=("微软雅黑", 10),
            bg="#f8f9fa", fg="#2c3e50", relief=tk.SUNKEN, wrap=tk.WORD
        )
        self.result_text.grid(row=5, column=0, columnspan=4, padx=30, pady=10)
        
        # 版权信息
        copyright_label = tk.Label(
            self.root, text="Produced by Vektorim", font=("Arial", 10, "italic"), fg="#7f8c8d"
        )
        copyright_label.grid(row=6, column=0, columnspan=4, pady=(0, 15))
    
    def _update_start_stations(self, event=None):
        """根据选择的起点线路，更新起点站下拉框"""
        selected_line = self.start_line_var.get()
        stations = self.lines[selected_line]
        self.start_station_combo["values"] = stations
        self.start_station_combo.current(0)
    
    def _update_end_stations(self, event=None):
        """根据选择的终点线路，更新终点站下拉框"""
        selected_line = self.end_line_var.get()
        stations = self.lines[selected_line]
        self.end_station_combo["values"] = stations
        self.end_station_combo.current(0)
    
    def _open_setting_window(self):
        """打开票价规则设置窗口"""
        settingWindow(self)
    
    def _calculate_fare(self, distance: float, rate: float, min_fare: int) -> int:
        """计算票价（四舍五入取整，不低于最低票价）"""
        fare = distance * rate
        return max(round(fare), min_fare)
    
    def _on_query(self):
        """查询按钮点击事件"""
        start = self.start_var.get().strip()
        end = self.end_var.get().strip()
        
        # 输入验证
        if start == end:
            self._show_result(f"⚠️  起点站和终点站不能相同（{start}）！", "red")
            return
        if start not in self.station_distances or end not in self.station_distances[start]:
            self._show_result(f"⚠️  未找到 {start} → {end} 的线路数据！", "red")
            return
        
        # 计算距离和票价
        distance = self.station_distances[start][end]
        fare1 = self._calculate_fare(distance, self.fare_standards[0]["rate"], self.fare_standards[0]["min_fare"])
        fare2 = self._calculate_fare(distance, self.fare_standards[1]["rate"], self.fare_standards[1]["min_fare"])
        
        # 格式化结果
        result = f"✅  查询成功：{start} → {end}\n"
        result += f"📏  里程：{distance:.2f} 公里\n"
        result += f"💰  {self.fare_standards[0]['desc']}（取整后）：{fare1} 元\n"
        result += f"💰  {self.fare_standards[1]['desc']}（取整后）：{fare2} 元\n"
        self._show_result(result, "green")
    
    def _show_result(self, content: str, color: str = "black"):
        """在结果框显示内容"""
        self.result_text.delete(1.0, tk.END)
        self.result_text.insert(tk.END, content)
        self.result_text.tag_configure("color", foreground=color)
        self.result_text.tag_add("color", 1.0, tk.END)

    def _open_setting_window(self):
        """打开票价规则设置窗口（修改参数传递）"""
        settingWindow(self.root, self)  # 传入主窗口root和当前类实例self

class settingWindow(tk.Toplevel):
    """票价规则设置窗口（彻底修复布局和参数传递问题）"""
    def __init__(self, master, parent):  # 新增master参数（主窗口），parent为ShenzhenIntercityQuery实例
        super().__init__(master)  # 用主窗口作为Toplevel的父组件
        self.parent = parent  # 保留父类实例，用于更新票价规则
        self.title("票价规则设置")
        self.geometry("450x320")  # 扩大窗口尺寸，避免组件拥挤
        self.resizable(False, False)
        
        # 直接从父组件获取票价标准，避免拷贝错误
        self.rate1_var = tk.StringVar(value=str(parent.fare_standards[0]["rate"]))
        self.min1_var = tk.StringVar(value=str(parent.fare_standards[0]["min_fare"]))
        self.rate2_var = tk.StringVar(value=str(parent.fare_standards[1]["rate"]))
        self.min2_var = tk.StringVar(value=str(parent.fare_standards[1]["min_fare"]))
        
        # 直接从父组件获取票价标准，避免拷贝错误
        self.rate1_var = tk.StringVar(value=str(parent.fare_standards[0]["rate"]))
        self.min1_var = tk.StringVar(value=str(parent.fare_standards[0]["min_fare"]))
        self.rate2_var = tk.StringVar(value=str(parent.fare_standards[1]["rate"]))
        self.min2_var = tk.StringVar(value=str(parent.fare_standards[1]["min_fare"]))
        
        # 标题
        title = tk.Label(
            self, text="调整票价规则与最低票价", font=("微软雅黑", 12, "bold"), fg="#2c3e50"
        )
        title.grid(row=0, column=0, columnspan=3, pady=20)
        
        # 票价标准1设置（简化列布局：0=标签，1=输入框，2=单位）
        self._add_setting_row(1, "标准1", self.rate1_var, self.min1_var)
        # 票价标准2设置
        self._add_setting_row(2, "标准2", self.rate2_var, self.min2_var)
        
        # 保存按钮
        save_btn = tk.Button(
            self, text="保存设置", command=self._save,
            font=("微软雅黑", 11, "bold"), bg="#27ae60", fg="white",
            width=15, relief=tk.RAISED, activebackground="#2ecc71"
        )
        save_btn.grid(row=3, column=0, columnspan=3, pady=25)
    
    def _add_setting_row(self, row: int, label_text: str, rate_var: tk.StringVar, min_var: tk.StringVar):
        """添加一行设置（3列布局，避免列数溢出）"""
        # 标准标签
        label = tk.Label(self, text=f"{label_text}：", font=("微软雅黑", 10), fg="#34495e")
        label.grid(row=row, column=0, padx=(40, 10), pady=10, sticky="w")
        
        # 费率输入区（输入框+单位）
        rate_entry = tk.Entry(self, textvariable=rate_var, width=10, font=("微软雅黑", 10))
        rate_entry.grid(row=row, column=1, padx=5, pady=10, sticky="w")
        rate_unit = tk.Label(self, text="元/公里", font=("微软雅黑", 9), fg="#7f8c8d")
        rate_unit.grid(row=row, column=1, padx=(90, 0), pady=10, sticky="w")
        
        # 最低票价输入区（输入框+单位）
        min_entry = tk.Entry(self, textvariable=min_var, width=8, font=("微软雅黑", 10))
        min_entry.grid(row=row, column=2, padx=(20, 5), pady=10, sticky="w")
        min_unit = tk.Label(self, text="元（最低）", font=("微软雅黑", 9), fg="#7f8c8d")
        min_unit.grid(row=row, column=2, padx=(80, 0), pady=10, sticky="w")
    
    def _save(self):
        """保存设置（简化逻辑，直接读取变量）"""
        try:
            rate1 = float(self.rate1_var.get().strip())
            min1 = int(self.min1_var.get().strip())
            rate2 = float(self.rate2_var.get().strip())
            min2 = int(self.min2_var.get().strip())
            
            # 验证正数
            if rate1 <= 0 or rate2 <= 0 or min1 <= 0 or min2 <= 0:
                raise ValueError("费率和最低票价必须为正数")
            
            # 更新父组件的票价规则
            self.parent.fare_standards = [
                {"rate": rate1, "min_fare": min1, "desc": f"{rate1}元/公里（最低{min1}元）"},
                {"rate": rate2, "min_fare": min2, "desc": f"{rate2}元/公里（最低{min2}元）"}
            ]
            
            messagebox.showinfo("成功", "票价规则已更新！")
            self.destroy()
        except ValueError as e:
            messagebox.showerror("输入错误", f"请输入有效数值：{str(e)}")

# 程序入口
if __name__ == "__main__":
    root = tk.Tk()
    app = ShenzhenIntercityQuery(root)
    root.mainloop()