login界面
import file_funcs
import stu_sys
# 登录注册界面
def list_login():
print('''
+++++++++++++++++++++++++++++++++++++++++++++++++
+ welcome to student manage system +
+ 1.register +
+ +
+ 2.login +
+ +
+ 0.exit +
+++++++++++++++++++++++++++++++++++++++++++++++++
''')
cmd = input('>>>>>>>')
if '0' <= cmd <= '2':
return cmd
else:
print('输入内存错误！')
return False
def login():
while True:
result = list_login()
if not result:
continue
if result == '1':
user_name = input('请输入用户名：')
users = file_funcs.get_infos('users')
for index in range(len(users)):
if user_name == users[index]['name']:
print('该用户名已经存在！')
break
else:
password = input('请输入密码：')
password_confirm = input('请再次输入密码：')
if password == password_confirm:
new_user = {'name': user_name, 'password': password, 'database': user_name+'_database', 'stu_nums': '0',
'stu_id_next': '1'}
file_funcs.add_info('users', new_user)
print('注册成功！')
else:
print('两次密码不一致！注册失败！')
if result == '2':
user_name = input('请输入用户名：')
password = input('请输入密码：')
users = file_funcs.get_infos('users')
for index in range(len(users)):
if user_name == users[index]['name']:
if password == users[index]['password']:
print('登录成功！')
stu_sys.main(user_name, users[index]['database'])
else:
print('密码错误！')
break
else:
print('用户名不存在！')
if result == '0':
return
if __name__ == '__main__':
login()
文件读写
import json
# 获取信息
def get_infos(file_name):
try:
with open('./files/'+file_name+'.json', 'r', encoding='utf-8') as f:
all_stu_infos = json.load(f)
except FileNotFoundError:
all_stu_infos = []
return all_stu_infos
# 添加信息
def add_info(file_name, stu_info):
# 获取之前的学生信息
all_stu_infos = get_infos(file_name)
with open('./files/'+file_name+'.json', 'w', encoding='utf-8') as f:
# 将新的学生信息添加到所有学生信息的最后
all_stu_infos.append(stu_info)
# 保存所有信息
json.dump(all_stu_infos, f)
# 返回保存成功的信息
return True
# 重新写入
def rewrite(file_name, stu_info):
with open('./files/'+file_name+'.json', 'w', encoding='utf-8') as f:
# 保存所有信息
json.dump(stu_info, f)
# 返回保存成功的信息
return True
if __name__ == '__main__':
pass
dao方法
import file_funcs
# 查找学生
def stu_find(file_name):
stu_infos = file_funcs.get_infos(file_name)
stu_info = input('请输入学生的学号:')
for index_info in range(len(stu_infos)):
# 学生信息存在
if stu_info == stu_infos[index_info]['stu_id']:
return stu_infos[index_info]
# 学生信息不存在
else:
return stu_info
# 查找全部
def stu_find_all(file_name):
stu_infos = file_funcs.get_infos(file_name)
for index_info in range(len(stu_infos)):
print('姓名:%s\t学号:%s\t英语:%s\t体育:%s\t美术:%s\t数学:%s\t年龄:%s\t' % (stu_infos[index_info]['name'],
stu_infos[index_info]['stu_id'],
stu_infos[index_info]['score']['English'],
stu_infos[index_info]['score']['PE'],
stu_infos[index_info]['score']['art'],
stu_infos[index_info]['score']['math'],
stu_infos[index_info]['age']))
# 添加学生信息
def stu_create(file_name, name, stu_id, english, pe, art, math, age):
# stu_infos.append({'name':name, 'stu_id':stu_id,'score':{'English':english, 'PE':pe, 'art':art, 'math':math},
# 'age':age})
file_funcs.add_info(file_name, {'name': name, 'stu_id': stu_id, 'score': {'English': english, 'PE': pe, 'art': art,
'math': math}, 'age': age})
# 删除学生信息
def stu_del(file_name, stu_info):
stu_infos = file_funcs.get_infos(file_name)
index_stu = stu_infos.index(stu_info)
del stu_infos[index_stu]
file_funcs.rewrite(file_name, stu_infos)
print('删除信息成功！')
def stu_num_id_get(user_name):
users = file_funcs.get_infos('users')
for index in range(len(users)):
if user_name == users[index]['name']:
stu_nums = users[index]['stu_nums']
stu_id = users[index]['stu_id_next']
users[index]['stu_nums'] = str(int(users[index]['stu_nums'])+1)
users[index]['stu_id_next'] = str(int(users[index]['stu_id_next'])+1)
file_funcs.rewrite('users', users)
return stu_nums, stu_id
def stu_num_del(user_name):
users = file_funcs.get_infos('users')
for index in range(len(users)):
if user_name == users[index]['name']:
users[index]['stu_nums'] = str(int(users[index]['stu_nums']) - 1)
file_funcs.rewrite('users', users)
return
if __name__ == '__main__':
pass
学生管理系统
import dao
def list_main():
print('''
+++++++++++++++++++++++++++++++++++++++++++++++++
+ welcome to student manage system +
+ 1.add student information +
+ 2.View personal information by id +
+ 3.del personal information by id +
+ 4.view all information +
+ 5.view personal average score by id +
+ 0.exit +
+++++++++++++++++++++++++++++++++++++++++++++++++
''')
user_cmd = input('>>>>>')
return user_cmd
# 判断用户输入
def user_input(user_cmd):
if user_cmd == '1':
while True:
stu_nums, stu_id = dao.stu_num_id_get(file_user)
name, english, pe, art, math, age = stu_info_input()
dao.stu_create(file_name, name, stu_id, english, pe, art, math, age)
# 判断是否继续或者退出
print('''
1.继续添加
2.返回上一层
''')
user_cmd = input('>>>>>')
if user_cmd == '1':
continue
elif user_cmd == '2':
return
else:
print('输入有误!')
return
elif user_cmd == '2':
while True:
stu_info = dao.stu_find(file_name)
if isinstance(stu_info, str):
print('学生信息不存在！')
else:
# 打印学生信息
print('姓名:%s\t学号:%s\t英语:%s\t体育:%s\t美术:%s\t数学:%s\t年龄:%s\t' % (
stu_info['name'], stu_info['stu_id'], stu_info['score']['English'], stu_info['score']['PE'],
stu_info['score']['art'], stu_info['score']['math'], stu_info['age']))
# 判断是否继续或者退出
print('''
1.继续查看
2.返回上一层
''')
user_cmd = input('>>>>>')
if user_cmd == '1':
continue
elif user_cmd == '2':
return
else:
print('输入有误!')
return
elif user_cmd == '3':
while True:
stu_info = dao.stu_find(file_name)
if isinstance(stu_info, str):
print('学生信息不存在！')
else:
dao.stu_del(file_name, stu_info)
dao.stu_num_del(file_user)
# 判断是否继续或者退出
print('''
1.继续删除
2.返回上一层
''')
user_cmd = input('>>>>>')
if user_cmd == '1':
continue
elif user_cmd == '2':
return
else:
print('输入有误!')
return
elif user_cmd == '4':
while True:
dao.stu_find_all(file_name)
# 判断是否继续或者退出
print('''
1.继续查看
2.返回上一层
''')
user_cmd = input('>>>>>')
if user_cmd == '1':
continue
elif user_cmd == '2':
return
else:
print('输入有误!')
return
elif user_cmd == '5':
while True:
stu_info = dao.stu_find(file_name)
if isinstance(stu_info, str):
print('学生信息不存在！')
else:
score_ave(stu_info)
# 判断是否继续或者退出
print('''
1.继续查询
2.返回上一层
''')
user_cmd = input('>>>>>')
if user_cmd == '1':
continue
elif user_cmd == '2':
return
else:
print('输入有误!')
return
elif user_cmd == '0':
exit(0)
else:
print('输入内容有误！')
# 用户输入学生信息
def stu_info_input():
name = input('请输入学生的姓名：')
english = input('请输入音乐成绩：')
pe = input('请输入体育成绩：')
art = input('请输入美术成绩：')
math = input('请输入数学成绩：')
age = input('请输入学生的年龄：')
return name, english, pe, art, math, age
# 平均成绩
def score_ave(stu_info):
score_average = (int(stu_info['score']['English']) + int(stu_info['score']['PE']) +
int(stu_info['score']['art']) + int(stu_info['score']['math'])) / 4
print('姓名:%s\t学号:%s\t平均成绩是:%0.2f' % (
stu_info['name'], stu_info['stu_id'], score_average))
# 主程序
def main(user_name, user_database):
global file_user
file_user = user_name
global file_name
file_name = user_database
# global stu_infos
# stu_infos = file_funcs.get_infos(user_name)
while True:
# 打印列表内容，等待用户输入
user_input(list_main())
# 开始程序
if __name__ == '__main__':
pass
