stus_information = []

学生信息

nextstu_id = 1

下一个学生的学号

def add_stu():
"""
:return: 添加的学生的信息
"""
global nextstu_id
global stus_information
name = input("请输入姓名：")
age = input("请输入年龄：")
phone = input("请输入电话：")
password = input("请输入登陆密码")
if password == "":
password = name
# 设置初始密码为name
if name == "":
print("增加失败")
return
# 名字为空则增加失败
str_id = "python1807" + str(nextstu_id).rjust(3, "0")
dict1 = {"name": name, "age": age, "phone": phone,
"student_id": str_id, "password": password}
print(dict1)
print("学号为：" + str_id)
nextstu_id += 1
stus_information.append(dict1)
print("增加成功")
return dict1

def find_stu(student_name: str):
"""
:param student_name: 名字
:return: 查找的学生
"""
global stus_information
num = 0
list2 = []
for n in stus_information:
if n["name"] == student_name:
list2.append(n)
# 得到查找的学生
print(num, n)
num += 1
if num == 0:
print("没有该学生")
return list2

def del_stu(student: dict):
"""
:param student：要删除的学生
"""
global stus_information
# 在本系统中输入的一定是存在的学生，所以以下代码省略
# for s in stus_information:
# if s == student:
# break
stus_information.remove(student)
print("删除成功")

def change_stu(student: dict):
"""
:param student: 要修改的学生
"""
global stus_information
key1 = input("请输入要修改的信息")
if key1 not in student.keys():
print("输入信息有误，修改失败！！！")
elif key1 == "student_id":
print("不能修改学号!!!")
else:
value1 = input("请输入修改后的值")
for s in stus_information:
if s == student:
s[key1] = value1
print(s)
print("修改成功")

def manage_land():
if manage_name == input("请输入管理员名称")
and manage_password == input("请输入管理员密码"):
return True
print("输入出错！！！")
return False

def print_operation(s: str):
"""
:param s:操作及其编号
"""
num = num_interface - 5 - (len(s) - 1) + 10
print("║" + " " * 5 + s.ljust(num) + " ║")
# 不想解释，一个汉字占两空格，
# bug:格式只能是：单个数字.汉字，有英文界面会乱

打印界面中的不同功能

num_interface = 20

界面长度

start_interface = "╔" + "欢迎来到学生管理系统".center(num_interface, "-") + "╗"
end_interface = "╚" + "请输入执行的操作编号".center(num_interface, "-") + "╝"

登陆界面

def land_interface():
"""
:return: 操作编号
"""
print(start_interface)
print_operation("1.学生登陆")
# 只能修改查看自己的信息
print_operation("2.管理员登陆")
# 可以有所有权限
print_operation("3.注册")
# 加入一个新学生
print_operation("4.退出系统")
print(end_interface)
operation_num = input()
return operation_num

返回界面

def bank_interface():
print(start_interface)
print_operation("1.再次操作")
print_operation("2.返回上一层")
print(end_interface)
return input()

修改界面

def chang_intetface():
print(start_interface)
print_operation("1.修改信息")
print_operation("2.返回上一层")
print(end_interface)
return input()

管理员界面

def manage_interface():
print(start_interface)
print_operation("1.增加学生")
print_operation("2.查找学生")
print_operation("3.删除学生")
print_operation("4.显示所有学生")
print_operation("5.修改学生信息")
print_operation("6.修改管理员信息")
print_operation("7.返回上一层")
print(end_interface)
return input()

学生管理系统

print("欢迎使用学生管理系统")
manage_name = input("请输入管理员名称：")
manage_password = input("请输入登陆密码")
while 1:
operation_num = land_interface()
# 登陆界面
while 1:
# 学生登陆
if operation_num == "1":
my_id = input("请输入学号：")
my_password = input("请输入密码：")
for s in stus_information:
if s["student_id"] == my_id and s["password"] == my_password:
# 验证密码和学号
print(s)
break
# 密码错误时
else:
print("密码或学号错误！！！")
operation_num1 = bank_interface()
if operation_num1 != "1":
# 除1以外任意输入返回上一层
break
else:
continue
# 密码正确时
operation_num1 = chang_intetface()
# 修改学生信息
if operation_num1 == "1":
while 1:
# 循环可以多次修改信息
change_stu(s)
operation_num11 = bank_interface()
if operation_num11 != "1":
break
break
# 回到主界面
# 管理员登陆
elif operation_num == "2":
if not manage_land():
input("任意键返回")
break
while 1:
operation_num2 = manage_interface()
if operation_num2 == "1":
add_stu()
input("任意键退出")
elif operation_num2 == "2":
name2 = input("请输入要查找的学生的姓名：")
find_stu(name2)
input("任意键退出")
elif operation_num2 == "3":
name3 = input("请输入要删除的学生的姓名：")
students = find_stu(name3)
if len(students) == 0:
input("任意键退出")
continue
else:
print("请确认删除的学生，并输入对应的编号")
num3 = input()
if num3.isnumeric() and int(num3) in range(0, len(students)):
del_stu(students[int(num3)])
input("任意键退出")
elif operation_num2 == "4":
if len(stus_information) == 0:
print("还没有学生")
for s in stus_information:
print(s)
input("任意键退出")
elif operation_num2 == "5":
name5 = input("请入要修改学生的名字")
students = find_stu(name5)
if len(students) == 0:
input("任意键退出")
continue
num5 = input("请确定要修改的学生并输入编号：")
if num5.isnumeric() and int(num5) in range(0, len(students)):
num5=int(num5)
while 1:
change_stu(students[num5])
operation_num3 = bank_interface()
if operation_num3 != "1":
break
else:
print("没有该学生，输入编号出错")
elif operation_num2 == "6":
if not manage_land():
input("任意键返回")
continue
manage_name = input("请输入更改后的管理员名称：")
manage_password = input("请输入更改后的登陆密码")
else:
break
break
# 注册
elif operation_num == "3":
add_stu()
input("任意键退出")
break
# 退出系统
else:
exit()

作者：逆流而上_2eb6
链接：https://www.jianshu.com/p/ca5668cf543b
來源：简书
简书著作权归作者所有，任何形式的转载都请联系作者获得授权并注明出处。