1.创建并输出菜单, 菜单是不可变的. 所以使用元组
menus = ("1, 录入", "2, 查询", "3, 删除", "4, 修改", "5, 退出")
# 存储用户的信息 id: {‘name‘:‘名字‘, ‘weight‘:体重, ‘height‘:身高}
# 例如:目前有两个用户信息:1. 汪峰, 2. 章子怡
# 推荐存储结构:
# bodies = {
# 1:{‘name‘:‘汪峰‘, ‘weight‘:80, ‘height‘:1.8, ‘BMI‘:24.7},
# 2:{‘name‘:‘章子怡‘, ‘weight‘:50, ‘height‘:1.65, ‘BMI‘:18.4}
# }
bodies = {}
body_id = 1 # 编号从1开始
# 这个题也可以不按照我的设计思路走. 但是菜单必须是我的菜单. 功能必须是我上面的菜单的功能.其他的客户以参照我上方给的思路.
menus = ("1, 录入", "2, 查询", "3, 删除", "4, 修改", "5, 退出") for i in menus : print(i) bodies = {} i = 1 while 1: Num = input("请输入你要执行的项目的编号:").strip() if Num.isdigit()and int(Num)<6: Num = int(Num) if Num ==1: while 1: dic1={} s = input("录入信息(输入否结束录入,输入其他继续录入):") if s == "否": break else: name = input("请输入名字:") height = float(input("请输入身高(单位是m):")) weight = float(input("请输入体重(单位KG)")) BMI = round(weight / height ** 2, 1) dic1.setdefault("name", name) dic1.setdefault("weight", weight) dic1.setdefault("height", height) dic1.setdefault("BMI", BMI) bodies[i] = dic1 i += 1 elif Num ==2: while 1: if bodies !={}: id =int(input("请输入你要查询的人的id:").strip()) if id <= i and id>0: for k,v in bodies[id].items(): print(k,v) else: c1 = input("您要查询的人id不存在,是否继续查询:") if c1 == "否": break else: print("当前信息为空,无法查询") break elif Num==3: while 1: if bodies != {}: id = int(input("请输入你要删除的人的id:").strip()) if id <= i and id>0: bodies.pop(id) c2 = input("是否继续删除:") if c2 == "否": break else: print("您要删除的人id不存在") else: print("当前信息为空,无法删除") break elif Num==4: while 1: dic2={} if bodies != {}: id = int(input("请输入你要修改的人的id:").strip()) if id <= i and id > 0: for k, v in bodies[id].items(): print(k, v) name = input("请输入新的名字:") height = float(input("请输入新的身高(单位是m):")) weight = float(input("请输入新体重(单位KG)")) BMI = round(weight / height ** 2, 1) dic2.setdefault("name", name) dic2.setdefault("weight", weight) dic2.setdefault("height", height) dic2.setdefault("BMI", BMI) bodies[id] = dic2 for k, v in bodies[id].items(): print(k, v) c2 = input("是否继续进行修改:") if c2 == "否": break else: print("您要删除的人id不存在") else: print("当前信息为空,无法修改") break elif Num==5: exit(0) else: print("输入内容不合法,请重新输入")
原文:https://www.cnblogs.com/wcx666/p/9614316.html