data = { '北京':{"昌平":{"沙河":["old boy","test"],"天通苑":["链家地产","我爱我家"]}, '朝阳':{"望京":["奔驰","默默"],'国贸':["CICC","HP"],"东直门":["advent","飞信"]}, '海淀':{}, } }
exit_flag = False while not exit_flag: for i in data: print(i) choice = input("请选择输入1>>:") if choice in data: while not exit_flag: for i2 in data[choice]: print("\t",i2) choice2 = input("请选择输入2>>:") if choice2 in data[choice]: while not exit_flag: for i3 in data[choice][choice2]: print("\t\t",i3) choice3 = input("请选择输入3>>:") if choice3 in data[choice][choice2]: for i4 in data[choice][choice2][choice3]: print("\t\t",i4) choice4 = input("最后一层目录，请按b返回>>:") if choice4 == "b": pass elif choice4 == "q": exit_flag = True if choice3 == "b": break elif choice3 == "q": exit_flag = True if choice2 == "b": break elif choice2 == "q": exit_flag == True
#简化版
menu = { '北京':{ '海淀':{ '五道口':{ 'soho':{}, '网易':{}, 'google':{} }, '中关村':{ '爱奇艺':{}, '汽车之家':{}, 'youku':{}, }, '上地':{ '百度':{}, }, }, '昌平':{ '沙河':{ '老男孩':{}, '北航':{}, }, '天通苑':{}, '回龙观':{}, }, '朝阳':{}, '东城':{}, }, '上海':{ '闵行':{ "人民广场":{ '炸鸡店':{} } }, '闸北':{ '火车战':{ '携程':{} } }, '浦东':{}, }, '山东':{}, }
exit_flag = False current_layer = menu
layers = [menu]
while not exit_flag: for k in current_layer: print(k) choice = input(">>:").strip() if choice == "b": current_layer = layers[-1] #print("change to laster", current_layer) layers.pop() elif choice not in current_layer:continue else: layers.append(current_layer) current_layer = current_layer[choice]
转自@Alex Li
