# msg = "hello egon 666"
# for i in msg:
#     print(i)
#练习2
# count = 0
# while True:
#     if count > len(msg):
#         break
#     print(msg[count])
#     count += 1
#练习3
# msg = "hello alex"
# print(msg.replace("alex","sb"))
#练习4
# msg = "/etc/a.txt|365|get"
#
# print(msg.split("/")[1])
# print(msg.split("/")[2].split("|")[0])
# print(msg.split("/")[2].split("|")[1])
# print(msg.split("/")[2].split("|")[2])

#练习5
# while True:
#     msg = input("==>:")
#     print(msg)

#练习6
# while True:
#     name = input("name:").strip()
#     password = input("password:").strip()
#     if len(name) ==0 or len(password) == 0:
#         continue
#     if password.isdigit():
#         password = int(password)
#     if name == "chen" and password == 123:
#         print("正确")
#         break
#练习7
# while True:
#     msg = input("请输入内容")
#     if msg.startswith("alex"):
#         print(msg+"_SB")
#练习8
tag = True
while tag:
    name = input("请输入姓名：").strip()
    password = input("请输入密码：").strip()
    salary = input("请输入工资：").strip()
    work_mon = input("请输入工作年份：").strip()
    if len(work_mon) ==0 or (not work_mon.isdigit()) or len(name) == 0 or len(password) ==0 or len(salary) ==0 or (not salary.isdigit()):
        continue
    else:
        #输入成功
        # salary = int(salary)
        while tag:

            search = input(‘‘‘
                1 查询总工资
                2 查询用户身份
                3 退出登录
            ‘‘‘)
            if search.isdigit():
                search = int(search)
                if search == 1:
                    print(salary)
                elif search == 2:
                    if name == "alex":
                        print("super user")
                    elif name == "yuahao" or name == "wupeiqi":
                        print("normal user")
                    else:
                        print("unkown user")
                    continue
                elif search == 3:
                    tag = False

7月19