目前存在问题：未实现用户权限划分和数据的合法性检测
main：
import function
all_students = []
while True:
print('================================')
print('1.❤登录')
print('2.❤注册')
print('3.❤返回')
print('================================')
log1 = input('请选择：')
if log1 == '2':
function.register()
elif log1 == '1':
with open('./user.txt', 'r', encoding='utf-8') as users:
usernameslist1 = users.read().split(',')
del usernameslist1[-1]
usernameslist2 = []
for i in usernameslist1:
usernameslist2.append(i.split(':'))
usernameslist3 = dict(usernameslist2)
username2 = input('请输入用户名（6位以上）：')
password2 = input('请输入密码（6-8位）：')
if function.login(usernameslist3,username2,password2):
while True:
function.interface1(username2)
contrl1 = input('请选择(1-5)：')
if contrl1 == '1':
function.wg_input(all_students)
elif contrl1 == '2':
while True:
print('================================')
print('1.❤查看所有学生')
print('2.❤按姓名查找')
print('3.❤按学号查找')
print('4.❤返回')
sel = input('请选择（1-4）：')
print('================================')
function.wg_sel(all_students, sel)
if sel == '4':
break
elif contrl1 == '3':
while True:
print('================================')
print('1.❤按姓名查找修改')
print('2.❤按学号查找修改')
print('3.❤返回')
upda = input('请选择：（1-3）：')
print('================================')
function.wg_update(all_students, upda)
if upda == '3':
break
elif contrl1 == '4':
while True:
print('================================')
print('1.❤按学号查找删除')
print('2.❤按姓名查找')
print('3.❤返回')
del1 = input('请选择（1-3）：')
print('================================')
function.wg_del(all_students, del1)
if del1 == '3':
break
elif contrl1 == '5':
break
else:
print('输入错误，请重新输入：')
continue
else:
print('账号密码有误，请重新输入')
elif log1 =='3':
break
else:
print('输入错误！请重新输入！')
continue
function:
def log():
print('================================')
username = input('请输入用户名：')
password = input('请输入密码：')
print('================================')
if username =='wangguo' and password=='123456':
return True
def interface1(username):
print('================================')
print('❀❀欢迎您:%s'%username )
print('1.❤添加学生')
print('2.❤查看学生')
print('3.❤修改学生信息')
print('4.❤删除学生')
print('5.❤返回')
print('================================')
def wg_input(all_students:list):
def get_num():
num = 1
while True:
yield '1%03.d' % (num)
num += 1
num_gen = get_num()
while True:
print('================================')
addname = input('请输入姓名：')
addage = int(input('请输入年龄：'))
addscore = int(input('请输入成绩：'))
addtel = input('请输入电话：')
all_students.append(
{'name': addname, 'num': next(num_gen), 'age': addage, 'score': addscore, 'tel': addtel})
print('添加成功')
print('1.❤继续添加')
print('2.❤退出')
contrl2 = input('请选择(1-2)：')
print('================================')
if contrl2 == '1':
continue
else:
break
def wg_sel(all_students:list,sel):
if sel == '1':
for item1 in all_students:
print(item1)
elif sel == '2':
name1 = input('请输入您要查询的姓名：')
i = 0
list1 = []
while i in range(len(all_students)):
if all_students[i]['name'] == name1:
list1.append(all_students[i])
i += 1
if len(list1) == 0:
print('没有找到该记录！！')
else:
for n in list1:
print(n)
elif sel == '3':
list2 = []
num = input('请输入您要查询的学号：')
for i in all_students:
if num == i['num']:
list2.append(i)
if len(list2) == 0:
print('没有找到该记录！！')
else:
for n in list2:
print(n)
def wg_update(all_students:list,upda):
if upda == '1':
upname = input('请输入您需要修改的姓名：')
for i in all_students:
if i['name'] == upname:
print('================================')
print('1.❤修改姓名')
print('2.❤修改学号')
print('3.❤修改年龄')
print('4.❤修改成绩')
print('5.❤修改电话')
print('6.❤返回')
print('================================')
upname1 = input('请输入您需要修改的信息：')
if upname1 == '1':
upname2 = input('请输入修改后的姓名：')
i['name'] = upname2
print('修改成功')
elif upname1 == '2':
upnum2 = input('请输入修改后的学号：')
i['num'] = upnum2
print('修改成功')
elif upname1 == '3':
upage2 = input('请输入修改后的年龄：')
i['age'] = upage2
print('修改成功')
elif upname1 == '4':
upscore2 = input('请输入修改后的成绩：')
i['score'] = upscore2
print('修改成功')
elif upname1 == '5':
uptel2 = input('请输入修改后的电话：')
i['tel'] = uptel2
print('修改成功')
elif upname1 == '6':
break
if upda == '2':
upnum = input('请输入您需要修改的学号：')
for i in all_students:
if i['num'] == upnum:
print('================================')
print('1.❤修改姓名')
print('2.❤修改学号')
print('3.❤修改年龄')
print('4.❤修改电话')
print('5.❤修改成绩')
print('6.❤返回')
upname1 = input('请输入您需要修改的信息：')
print('================================')
if upname1 == '1':
upname2 = input('请输入修改后的姓名：')
i['name'] = upname2
print('修改成功')
elif upname1 == '2':
upnum2 = input('请输入修改后的学号：')
i['num'] = upnum2
print('修改成功')
elif upname1 == '3':
upage2 = input('请输入修改后的年龄：')
i['age'] = upage2
print('修改成功')
elif upname1 == '4':
upscore2 = input('请输入修改后的成绩：')
i['score'] = upscore2
print('修改成功')
elif upname1 == '5':
uptel2 = input('请输入修改后的电话：')
i['tel'] = uptel2
print('修改成功')
elif upname1 == '6':
break
def wg_del(all_students:list,del1):
if del1 == '1':
del2 = input('请输入您需要删除的学号：')
list2 = []
for i in all_students[:]:
if del2 == i['num']:
list2.append(i)
if len(list2) == 0:
print('没有找到该记录！！')
else:
print('确定删除吗？')
print('1.确定')
print('2.返回')
sure = input('请选择：')
if sure == '1':
for i in all_students[:]:
if del2 == i['num']:
all_students.remove(i)
print('删除成功！')
print(all_students)
else:
break
if del1 == '2':
name1 = input('请输入您要查询的姓名：')
i = 0
list1 = []
while i in range(len(all_students)):
if all_students[i]['name'] == name1:
list1.append(all_students[i])
i += 1
if len(list1) == 0:
print('没有找到该记录！！')
else:
for n in range(len(list1)):
print(n,list1[n])
sure = int(input('请选择你所需要删除的序号：'))
all_students.remove(list1[sure])
print('删除成功！')
def register():
while True:
username = input('请输入用户名：（6位以上）')
if 6 <= len(username):
while True:
password = input('请输入密码（6-8位）：')
if 6 <= len(password) <= 8:
with open('./user.txt', 'a', encoding='utf-8') as users:
users.write('%s:' % username)
users.write('%s,' % password)
print('注册成功！')
break
else:
print('输入有误！请重新输入！')
continue
break
else:
print('输入有误！请重新输入！')
continue
def login(usernameslist3:dict,username2,password2):
if 6 <= len(username2):
if 6 <= len(password2) <= 8:
names = []
for n in usernameslist3:
names.append(n)
if n == username2 and password2 == usernameslist3[n]:
return True
elif n == username2 and password2 != usernameslist3[n]:
print('密码有误，请重新登录！')
return False