编写一个车站查询系统的python课程设计代码

好的，我可以为你提供一个简单的车站查询系统的Python代码示例。这个示例并不完整，但可以帮助你了解如何使用Python编写一个简单的车站查询系统。在实际项目中，你需要根据实际需求进行详细的设计和开发。

import csv

def load_stations(filename):
    """
    从CSV文件中加载车站数据
    """
    stations = {}
    with open(filename) as csv_file:
        csv_reader = csv.reader(csv_file, delimiter=',')
        for row in csv_reader:
            station_code = row[0]
            station_name = row[1]
            stations[station_code] = station_name
    return stations

def find_station(stations, station_name):
    """
    根据车站名称查找车站代码
    """
    for code, name in stations.items():
        if name == station_name:
            return code
    return None

def search_trains(start_station, end_station):
    """
    根据起点站和终点站查询车次信息
    """
    stations = load_stations('stations.csv')
    start_code = find_station(stations, start_station)
    end_code = find_station(stations, end_station)

    if start_code is None or end_code is None:
        return []

    trains = []
    with open('trains.csv') as csv_file:
        csv_reader = csv.reader(csv_file, delimiter=',')
        for row in csv_reader:
            train_code = row[0]
            start = row[1]
            end = row[2]
            if start == start_code and end == end_code:
                trains.append(train_code)

    return trains

# 示例用法
start_station = '北京'
end_station = '上海'
trains = search_trains(start_station, end_station)
print(f"从{start_station}到{end_station}共有{len(trains)}趟列车：{trains}")

在这个示例中，我们使用了Python内置的csv模块来读取车站数据和车次数据。load_stations函数从stations.csv文件中加载所有车站数据，find_station函数根据车站名称查找车站代码，search_trains函数根据起点站和终点站查询所有符合条件的车次信息。你需要在本地创建stations.csv和trains.csv文件，分别存储车站数据和车次数据。