学生信息管理系统——文件操作
import json
students = []
while True:
# print('学生信息管理系统'.center(30, '*'))
# print('1、添加学生信息'.center(30, ' '))
# print('2、查看学生信息'.center(30, ' '))
# print('3、修改学生信息'.center(30, ' '))
# print('4、删除学生信息'.center(30, ' '))
# print('5、退出系统'.center(30, ' '))
# print('**************************************')
with open ('./files/default.txt', 'r', encoding= 'utf-8') as f:
print(f.read())
student = (dict.fromkeys(['name', 'age', 'tel']))
caozuo = int(input('请选择你要进行的操作：'))
if caozuo == 1:
print('学生信息管理系统'.center(30, '*'))
print('添加学生信息'.center(30, ' '))
student['name'] = input('请输入学生姓名：')
student['age'] = int(input('请输入学生年龄：'))
student['tel'] = input('请输入学生电话：')
with open('./files/user.json', 'r', encoding='utf-8') as f:
students = json.load(f)
students.append(student)
with open('./files/user.json', 'w', encoding='utf-8') as f:
# f.write(str(student))
json.dump(students,f)
print('添加成功')
# print(students)
print('**************************************')
elif caozuo == 2:
print('学生信息管理系统'.center(30, '*'))
print('查看学生信息'.center(30, ' '))
# print(students)
with open('./files/user.json', 'r', encoding='utf-8') as f:
print(json.load(f))
print('**************************************')
elif caozuo == 3:
print('学生信息管理系统'.center(30, '*'))
print('修改学生信息'.center(30, ' '))
stu_name = input('请输入学生姓名：')
with open('./files/user.json', 'r', encoding='utf-8') as f:
stu_inf = json.load(f)
for stu in stu_inf:
if stu['name'] == stu_name:
print(stu)
value = input('是否要修改？Y/N')
if value == 'N':
continue
stu['age'] = int(input('请修改学生年龄：'))
stu['tel'] = input('请修改学生电话：')
with open('./files/user.json', 'w', encoding='utf-8') as f:
json.dump(stu_inf, f)
print('修改成功')
print('**************************************')
elif caozuo == 4:
print('学生信息管理系统'.center(30, '*'))
print('删除学生信息'.center(30, ' '))
stu_name = input('请输入学生姓名：')
with open('./files/user.json', 'r', encoding='utf-8') as f:
stu_inf = json.load(f)
for stu in stu_inf:
if stu['name'] == stu_name:
print(stu)
value = input('是否想删除该学生？Y/N')
if value == 'N':
continue
stu_inf.remove(stu)
with open('./files/user.json', 'w', encoding='utf-8') as f:
json.dump(stu_inf,f)
print('删除成功')
print('**************************************')
elif caozuo == 5:
break
登录界面
import json
students = []
while True:
with open ('./files/login', 'r', encoding= 'utf-8') as f:
print(f.read())
student = (dict.fromkeys(['name', 'password']))
caozuo = int(input('请选择你要进行的操作：'))
if caozuo == 2:
print('学生信息管理系统'.center(30, '*'))
print('注册'.center(30, ' '))
student['name'] = input('请输入用户名：')
student['password'] = input('请输入密码：')
with open('./files/login.json', 'r', encoding='utf-8') as f:
students = json.load(f)
students.append(student)
with open('./files/login.json', 'w', encoding='utf-8') as f:
json.dump(students,f)
print('注册成功')
print('**************************************')
elif caozuo == 1:
print('学生信息管理系统'.center(30, '*'))
print('登录'.center(30, ' '))
stu_name = input('请输入学生用户名：')
stu_password = input('请输入密码：')
with open('./files/login.json', 'r', encoding='utf-8') as f:
stu_inf = json.load(f)
for stu in stu_inf:
if stu['name'] == stu_name and stu['password'] == stu_password:
print('登录成功')
import student_system
else:
print('用户名或密码错误！')
print('**************************************')
elif caozuo == 3:
break
