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house_operation.py

@@ -1,83 +1,77 @@
-import json
-import os
-
-# 以下为 V1.0 原有代码，完全未修改
-
-# 定义数据文件路径
-HOUSE_FILE = "./data/houses.json"
-
-def init_db():
-    """
-    初始化数据文件：如果houses.json不存在，创建并写入空列表
-    空间复杂度：O(1)（仅创建空文件）
-    """
-    # 确保data文件夹存在
-    os.makedirs("./data", exist_ok=True)
-    # 如果文件不存在，创建并写入空列表
-    if not os.path.exists(HOUSE_FILE):
-        with open(HOUSE_FILE, 'w', encoding='utf-8') as f:
-            json.dump([], f, ensure_ascii=False, indent=4)
-
-def read_houses():
-    """
-    读取所有房源数据
-    时间复杂度：O(n)（n为房源数，JSON解析耗时与数据量正相关）
-    空间复杂度：O(n)（存储所有房源数据）
-    return: 房源列表（每个元素是字典）
-    """
-    init_db()  # 先确保文件存在
-    with open(HOUSE_FILE, 'r', encoding='utf-8') as f:
-        return json.load(f)
-
-def write_houses(houses):
-    """
-    写入房源数据到JSON文件
-    时间复杂度：O(n)（n为房源数，JSON序列化耗时与数据量正相关）
-    空间复杂度：O(1)（仅写入操作，无额外存储）
-    param houses: 要写入的房源列表
-    """
-    with open(HOUSE_FILE, 'w', encoding='utf-8') as f:
-        json.dump(houses, f, ensure_ascii=False, indent=4)
-
-# V2.0 新增代码：栈数据读写
-
-#  V2.0 新增：栈数据文件配置
-STACK_FILE = "./data/stack_data.json"
-
-# V2.0 新增：栈数据初始化与读写
-def init_stack_db():
-    """
-    初始化栈数据文件：若不存在则创建，区分操作记录栈/浏览历史栈
-    """
-    os.makedirs("./data", exist_ok=True)
-    if not os.path.exists(STACK_FILE):
-        init_data = {
-            "operation_stack": [],
-            "browse_stack": []
-        }
-        with open(STACK_FILE, 'w', encoding='utf-8') as f:
-            json.dump(init_data, f, ensure_ascii=False, indent=4)
-
-def read_stack(stack_type):
-    """
-    读取指定类型的栈数据
-    :param stack_type: operation（操作记录）/ browse（浏览历史）
-    """
-    init_stack_db()
-    with open(STACK_FILE, 'r', encoding='utf-8') as f:
-        data = json.load(f)
-    stack_key = f"{stack_type}_stack"
-    return data.get(stack_key, [])
-
-def write_stack(stack_type, new_stack):
-    """
-    写入指定类型的栈数据到文件
-    """
-    init_stack_db()
-    # 读取原有数据，避免覆盖另一个栈
-    with open(STACK_FILE, 'r', encoding='utf-8') as f:
-        data = json.load(f)
-    stack_key = f"{stack_type}_stack"
-    data[stack_key] = new_stack
-    with open(STACK_FILE, 'w', encoding='utf-8') as f:
-        json.dump(data, f, ensure_ascii=False, indent=4)
+import json
+import os
+
+HOUSE_FILE = "./data/houses.json"
+
+def init_db():
+    """初始化房源数据文件"""
+    os.makedirs("./data", exist_ok=True)
+    if not os.path.exists(HOUSE_FILE):
+        with open(HOUSE_FILE, 'w', encoding='utf-8') as f:
+            json.dump([], f, ensure_ascii=False, indent=4)
+
+def read_houses():
+    """读取所有房源"""
+    init_db()
+    with open(HOUSE_FILE, 'r', encoding='utf-8') as f:
+        return json.load(f)
+
+def write_houses(houses):
+    """写入房源"""
+    with open(HOUSE_FILE, 'w', encoding='utf-8') as f:
+        json.dump(houses, f, ensure_ascii=False, indent=4)
+
+STACK_FILE = "./data/stack_data.json"
+
+def init_stack_db():
+    """初始化栈文件"""
+    os.makedirs("./data", exist_ok=True)
+    if not os.path.exists(STACK_FILE):
+        init_data = {"operation_stack": [], "browse_stack": []}
+        with open(STACK_FILE, 'w', encoding='utf-8') as f:
+            json.dump(init_data, f, ensure_ascii=False, indent=4)
+
+def read_stack(stack_type):
+    """读取指定栈"""
+    init_stack_db()
+    with open(STACK_FILE, 'r', encoding='utf-8') as f:
+        data = json.load(f)
+    return data.get(f"{stack_type}_stack", [])
+
+def write_stack(stack_type, new_stack):
+    """写入指定栈"""
+    init_stack_db()
+    with open(STACK_FILE, 'r', encoding='utf-8') as f:
+        data = json.load(f)
+    data[f"{stack_type}_stack"] = new_stack
+    with open(STACK_FILE, 'w', encoding='utf-8') as f:
+        json.dump(data, f, ensure_ascii=False, indent=4)
+
+# V3.0 字符串+数组：邻接矩阵数据读写
+MATRIX_FILE = "./data/matrix.json"
+
+def init_matrix_db():
+    """
+    新增：初始化小区邻接矩阵文件
+    存储所有小区名称列表 和 二维距离数组（邻接矩阵）
+    """
+    os.makedirs("./data", exist_ok=True)
+    if not os.path.exists(MATRIX_FILE):
+        init_data = {
+            "community_list": [],    # 小区名称列表（一维数组）
+            "distance_matrix": []    # 小区距离二维数组（邻接矩阵）
+        }
+        with open(MATRIX_FILE, 'w', encoding='utf-8') as f:
+            json.dump(init_data, f, ensure_ascii=False, indent=4)
+
+def read_matrix_data():
+    """V3.0新增读取小区列表和距离邻接矩阵"""
+    init_matrix_db()
+    with open(MATRIX_FILE, 'r', encoding='utf-8') as f:
+        return json.load(f)
+
+def write_matrix_data(matrix_dict):
+    """V3.0新增保存小区列表和距离邻接矩阵"""
+    init_matrix_db()
+    with open(MATRIX_FILE, 'w', encoding='utf-8') as f:
+        json.dump(matrix_dict, f, ensure_ascii=False, indent=4)

house_service.py

@@ -1,140 +1,208 @@
-from house.db_operation import read_houses, write_houses
-
-
-def get_next_house_id():
-    """
-    生成下一个房源ID（保证ID唯一）
-    时间复杂度：O(n)（遍历所有房源找最大ID）
-    return: 下一个可用的ID（整数）
-    """
-    houses = read_houses()
-    if not houses:
-        return 1  # 无房源时，第一个ID为1
-    # 找到最大ID，加1作为新ID
-    max_id = max(house["id"] for house in houses)
-    return max_id + 1
-
-
-def add_house(address, price, area, house_type):
-    """
-    新增房源（线性表的尾部插入操作）
-    时间复杂度：O(n)（read/write各O(n)，整体O(n)）
-    空间复杂度：O(n)（存储所有房源数据）
-    param address: 房源地址（字符串）
-    param price: 租金（整数/浮点数）
-    param area: 面积（整数/浮点数）
-    param house_type: 户型（字符串，如"一居室"）
-    return: 新增成功返回True，失败返回False
-    """
-    # 基础数据校验（非空+数值合法性）
-    if not address or not house_type:
-        print("错误：地址和户型不能为空！")
-        return False
-    if not isinstance(price, (int, float)) or price <= 0:
-        print("错误：租金必须是正数！")
-        return False
-    if not isinstance(area, (int, float)) or area <= 0:
-        print("错误：面积必须是正数！")
-        return False
-
-    # 构建新房源字典（线性表的元素）
-    new_house = {
-        "id": get_next_house_id(),
-        "address": address,
-        "price": price,
-        "area": area,
-        "house_type": house_type
-    }
-
-    # 读取现有房源（线性表），新增元素（尾部插入）
-    houses = read_houses()
-    houses.append(new_house)  # 线性表append操作，时间复杂度O(1)
-
-    # 写入文件
-    write_houses(houses)
-    print(f"房源新增成功！房源ID：{new_house['id']}")
-    return True
-
-
-def delete_house(house_id):
-    """
-    删除房源（线性表的指定位置删除操作）
-    时间复杂度：O(n)（遍历找ID+写入文件，整体O(n)）
-    空间复杂度：O(n)（存储所有房源数据）
-    param house_id: 要删除的房源ID（整数）
-    return: 删除成功返回True，失败返回False
-    """
-    houses = read_houses()
-    # 遍历线性表，找到对应ID的房源
-    for index, house in enumerate(houses):
-        if house["id"] == house_id:
-            del houses[index]  # 线性表删除操作，时间复杂度O(n)（后续元素前移）
-            write_houses(houses)
-            print(f"房源ID {house_id} 删除成功！")
-            return True
-    print(f"错误：未找到房源ID {house_id}！")
-    return False
-
-
-def update_house(house_id, new_info):
-    """
-    修改房源信息（线性表的指定元素更新操作）
-    时间复杂度：O(n)（遍历找ID+写入文件，整体O(n)）
-    空间复杂度：O(n)（存储所有房源数据）
-    param house_id: 要修改的房源ID（整数）
-    param new_info: 要修改的字段字典（如{"price": 5500, "area": 85}）
-    return: 修改成功返回True，失败返回False
-    """
-    houses = read_houses()
-    # 遍历线性表，找到对应ID的房源
-    for house in houses:
-        if house["id"] == house_id:
-            # 仅更新传入的有效字段
-            for key, value in new_info.items():
-                if key in ["address", "price", "area", "house_type"]:
-                    # 校验数值字段合法性
-                    if key in ["price", "area"]:
-                        if not isinstance(value, (int, float)) or value <= 0:
-                            print(f"错误：{key}必须是正数！")
-                            return False
-                    house[key] = value
-            write_houses(houses)
-            print(f"房源ID {house_id} 修改成功！")
-            return True
-    print(f"错误：未找到房源ID {house_id}！")
-    return False
-
-
-def query_house(condition_type, condition_value):
-    """
-    查询房源（线性表的遍历筛选操作）
-    时间复杂度：O(n)（遍历所有房源，n为房源数）
-    空间复杂度：O(k)（k为符合条件的房源数，最坏O(n)）
-    param condition_type: 查询条件类型（"id"/"address"/"price"/"house_type"）
-    param condition_value: 查询条件值
-    return: 符合条件的房源列表
-    """
-    houses = read_houses()
-    result = []
-    # 按条件遍历筛选
-    for house in houses:
-        # 处理ID查询（整数匹配）
-        if condition_type == "id":
-            if house["id"] == int(condition_value):
-                result.append(house)
-        # 处理地址查询（模糊匹配）
-        elif condition_type == "address":
-            if condition_value in house["address"]:
-                result.append(house)
-        # 处理户型查询（精确匹配）
-        elif condition_type == "house_type":
-            if house["house_type"] == condition_value:
-                result.append(house)
-        # 处理租金查询（数值匹配，示例：查询等于该价格的房源）
-        elif condition_type == "price":
-            if house["price"] == float(condition_value):
-                result.append(house)
-        else:
-            print("错误：不支持的查询条件类型！")
-            return []
-    return result
+from house_operation import *
+from datetime import datetime
+
+def get_next_house_id():
+    houses = read_houses()
+    if not houses:
+        return 1
+    max_id = max(house["id"] for house in houses)
+    return max_id + 1
+
+def add_house(address, price, area, house_type):
+    if not address or not house_type:
+        print("错误：地址和户型不能为空！")
+        return False
+    if not isinstance(price, (int, float)) or price <= 0:
+        print("错误：租金必须是正数！")
+        return False
+    if not isinstance(area, (int, float)) or area <= 0:
+        print("错误：面积必须是正数！")
+        return False
+
+    new_house = {
+        "id": get_next_house_id(),
+        "address": address,
+        "price": price,
+        "area": area,
+        "house_type": house_type
+    }
+    houses = read_houses()
+    houses.append(new_house)
+    write_houses(houses)
+    print(f"房源新增成功！房源ID：{new_house['id']}")
+    return True
+
+def delete_house(house_id):
+    houses = read_houses()
+    for index, house in enumerate(houses):
+        if house["id"] == house_id:
+            del houses[index]
+            write_houses(houses)
+            print(f"房源ID {house_id} 删除成功！")
+            return True
+    print(f"错误：未找到房源ID {house_id}！")
+    return False
+
+def update_house(house_id, new_info):
+    houses = read_houses()
+    for house in houses:
+        if house["id"] == house_id:
+            for key, value in new_info.items():
+                if key in ["address", "price", "area", "house_type"]:
+                    if key in ["price", "area"]:
+                        if not isinstance(value, (int, float)) or value <= 0:
+                            print(f"错误：{key}必须是正数！")
+                            return False
+                    house[key] = value
+            write_houses(houses)
+            print(f"房源ID {house_id} 修改成功！")
+            return True
+    print(f"错误：未找到房源ID {house_id}！")
+    return False
+
+def query_house(condition_type, condition_value):
+    houses = read_houses()
+    result = []
+    for house in houses:
+        if condition_type == "id":
+            if house["id"] == int(condition_value):
+                result.append(house)
+        elif condition_type == "address":
+            if condition_value in house["address"]:
+                result.append(house)
+        elif condition_type == "house_type":
+            if house["house_type"] == condition_value:
+                result.append(house)
+        elif condition_type == "price":
+            if house["price"] == float(condition_value):
+                result.append(house)
+        else:
+            print("错误：不支持的查询条件类型！")
+            return []
+    return result
+
+MAX_STACK_LENGTH = 100
+
+def push_operation_stack(operation_info):
+    time_str = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    full_info = f"[{time_str}] {operation_info}"
+    stack = read_stack("operation")
+    stack.append(full_info)
+    if len(stack) > MAX_STACK_LENGTH:
+        stack.pop(0)
+    write_stack("operation", stack)
+
+def push_browse_stack(house_id):
+    stack = read_stack("browse")
+    if stack and stack[-1] == house_id:
+        return
+    stack.append(house_id)
+    if len(stack) > MAX_STACK_LENGTH:
+        stack.pop(0)
+    write_stack("browse", stack)
+
+def pop_operation_stack():
+    stack = read_stack("operation")
+    if not stack:
+        return None
+    latest_op = stack.pop()
+    write_stack("operation", stack)
+    return latest_op
+
+def pop_browse_stack():
+    stack = read_stack("browse")
+    if not stack:
+        return None
+    latest_hid = stack.pop()
+    write_stack("browse", stack)
+    return latest_hid
+
+def get_recent_records(stack_type, limit=10):
+    stack = read_stack(stack_type)
+    return stack[-limit:][::-1]
+
+def clear_stack(stack_type):
+    write_stack(stack_type, [])
+    print(f"{stack_type}记录已清空！")
+
+def parse_address_string(full_address):
+
+    # 字符串分割（串操作核心）
+    parts = full_address.split("市")
+    province_city = parts[0] + "市" if "市" in full_address else parts[0]
+    if "省" in province_city:
+        province, city = province_city.split("省")
+        province += "省"
+        city += "市"
+    else:
+        province = "未知省份"
+        city = province_city
+
+    # 继续拆分区县
+    if len(parts) > 1:
+        district_part = parts[1]
+        if "区" in district_part or "县" in district_part:
+            district, community = district_part.split("区") if "区" in district_part else district_part.split("县")
+            district += "区" if "区" in district_part else "县"
+        else:
+            district = "未知区县"
+            community = district_part
+    else:
+        district = "未知区县"
+        community = "未知小区"
+
+    return {
+        "province": province,
+        "city": city,
+        "district": district,
+        "community": community
+    }
+
+def fuzzy_query_by_district(keyword):
+
+    houses = read_houses()
+    result = []
+    for house in houses:
+        addr_info = parse_address_string(house["address"])
+        # 字符串包含匹配
+        if keyword in addr_info["district"] or keyword in addr_info["community"]:
+            result.append(house)
+    return result
+
+def init_community_matrix(community_name_list):
+    """
+    【V3.0新增 二维数组知识点：邻接矩阵初始化】
+    根据小区列表生成距离邻接矩阵，初始化距离为无穷大，自己到自己为0
+    时间复杂度：O(N²)，N为小区数量
+    空间复杂度：O(N²)
+    """
+    INF = float("inf")
+    n = len(community_name_list)
+    # 二维数组初始化（邻接矩阵）
+    distance_matrix = [[INF]*n for _ in range(n)]
+    for i in range(n):
+        distance_matrix[i][i] = 0   # 自己到自己距离为0
+
+    # 保存到数据文件
+    matrix_data = {
+        "community_list": community_name_list,
+        "distance_matrix": distance_matrix
+    }
+    write_matrix_data(matrix_data)
+    print("邻接矩阵初始化完成！")
+
+def update_matrix_distance(community_a, community_b, distance):
+
+    matrix_data = read_matrix_data()
+    community_list = matrix_data["community_list"]
+    distance_matrix = matrix_data["distance_matrix"]
+
+    try:
+        idx_a = community_list.index(community_a)
+        idx_b = community_list.index(community_b)
+        distance_matrix[idx_a][idx_b] = distance
+        distance_matrix[idx_b][idx_a] = distance
+        write_matrix_data(matrix_data)
+        print(f"{community_a} <-> {community_b} 距离更新成功！")
+    except ValueError:
+        print("小区名称不存在！")

main.py

@@ -0,0 +1,185 @@
+from house_service import *
+
+def print_menu():
+    print("\n===== 房屋出租系统 V3.0 =====")
+    print("1. 新增房源")
+    print("2. 删除房源")
+    print("3. 修改房源")
+    print("4. 查询房源")
+    print("5. 查看/管理操作记录")
+    print("6. 查看/管理浏览历史")
+    # V3.0 新增菜单
+    print("7. 地址字符串解析测试")
+    print("8. 按区域关键词模糊查询")
+    print("9. 初始化小区邻接矩阵")
+    print("10. 更新小区间距离")
+    print("11. 退出系统")
+    print("============================")
+
+def op_record_menu():
+    while True:
+        print("\n----- 操作记录管理 -----")
+        print("1. 查看最近10条")
+        print("2. 取出最新一条")
+        print("3. 清空记录")
+        print("4. 返回")
+        c = input("请选择：")
+        if c == "1":
+            lst = get_recent_records("operation",10)
+            print(lst if lst else "暂无记录")
+        elif c == "2":
+            print(pop_operation_stack() or "暂无记录")
+        elif c == "3":
+            clear_stack("operation")
+        elif c == "4":
+            break
+        else:
+            print("输入有误")
+
+
+def browse_history_menu():
+    while True:
+        print("\n----- 浏览历史管理 -----")
+        print("1. 查看最近10条")
+        print("2. 取出最新一条")
+        print("3. 清空历史")
+        print("4. 返回")
+        c = input("请选择：")
+        if c == "1":
+            id_list = get_recent_records("browse",10)
+            if not id_list:
+                print("暂无浏览历史")
+                continue
+            for idx,hid in enumerate(id_list,1):
+                info = query_house("id", hid)
+                if info:
+                    h = info[0]
+                    print(f"{idx}. ID:{hid} 地址:{h['address']}")
+                else:
+                    print(f"{idx}. ID:{hid} 房源已不存在")
+        elif c == "2":
+            hid = pop_browse_stack()
+            if not hid:
+                print("暂无浏览历史")
+                continue
+            info = query_house("id", hid)
+            print(f"最近浏览ID:{hid}")
+        elif c == "3":
+            clear_stack("browse")
+        elif c == "4":
+            break
+        else:
+            print("输入有误")
+
+
+def main():
+    while True:
+        print_menu()
+        choice = input("请输入功能编号：")
+
+        if choice == "1":
+            addr = input("输入房源地址：")
+            try:
+                price = float(input("输入月租金："))
+                area = float(input("输入面积："))
+            except:
+                print("租金面积必须是数字！")
+                continue
+            htype = input("输入户型：")
+            if add_house(addr,price,area,htype):
+                new_id = get_next_house_id() - 1
+                push_operation_stack(f"新增房源ID:{new_id} 地址:{addr}")
+
+        elif choice == "2":
+            try:
+                hid = int(input("输入要删除房源ID："))
+                res = query_house("id",hid)
+                addr = res[0]["address"] if res else "未知地址"
+                if delete_house(hid):
+                    push_operation_stack(f"删除房源ID:{hid} 地址:{addr}")
+            except:
+                print("ID必须是整数")
+
+        elif choice == "3":
+            try:
+                hid = int(input("输入要修改房源ID："))
+                edit = {}
+                a = input("新地址(回车不修改)：")
+                if a: edit["address"] = a
+                p = input("新租金(回车不修改)：")
+                if p: edit["price"] = float(p)
+                ar = input("新面积(回车不修改)：")
+                if ar: edit["area"] = float(ar)
+                t = input("新户型(回车不修改)：")
+                if t: edit["house_type"] = t
+                if edit:
+                    if update_house(hid, edit):
+                        push_operation_stack(f"修改房源ID:{hid} 变更:{edit}")
+                else:
+                    print("未填写任何修改内容")
+            except:
+                print("输入格式错误")
+
+        elif choice == "4":
+            print("1-ID  2-地址  3-租金  4-户型")
+            sel = input("选择查询类型：")
+            map_dic = {"1":"id","2":"address","3":"price","4":"house_type"}
+            if sel not in map_dic:
+                print("选择无效")
+                continue
+            val = input("输入查询值：")
+            res_list = query_house(map_dic[sel], val)
+            if not res_list:
+                print("未找到房源")
+                continue
+            for h in res_list:
+                print(f"ID:{h['id']} 地址:{h['address']} 租金:{h['price']}")
+                if map_dic[sel] == "id":
+                    push_browse_stack(h["id"])
+
+        elif choice == "5":
+            op_record_menu()
+        elif choice == "6":
+            browse_history_menu()
+
+        #3.0
+        elif choice == "7":
+            # 测试地址字符串解析
+            full_addr = input("输入完整地址（如：四川省德阳市什邡市XX小区）：")
+            res = parse_address_string(full_addr)
+            print("解析结果：", res)
+
+        elif choice == "8":
+            # 按区域关键词模糊查询
+            keyword = input("输入区域关键词（如：什邡、德阳）：")
+            res_list = fuzzy_query_by_district(keyword)
+            if not res_list:
+                print("未找到该区域房源")
+            else:
+                for h in res_list:
+                    print(f"ID:{h['id']} 地址:{h['address']}")
+
+        elif choice == "9":
+            # 初始化小区邻接矩阵
+            community_input = input("输入所有小区名称，用英文逗号分隔：")
+            community_list = community_input.split(",")
+            init_community_matrix(community_list)
+
+        elif choice == "10":
+            # 更新两个小区距离
+            c1 = input("输入小区A名称：")
+            c2 = input("输入小区B名称：")
+            try:
+                dis = float(input("输入两小区距离："))
+                update_matrix_distance(c1, c2, dis)
+            except:
+                print("距离必须是数字")
+
+        elif choice == "11":
+            print("系统退出成功！")
+            break
+        else:
+            print("请输入有效编号")
+
+if __name__ == "__main__":
+    main()