#显示主菜单
def show_menu():
print('欢迎进入千峰学生管理系统'.center(20, '='))
print('1.添加学生')
print('2.删除学生')
print('3.修改信息')
print('4.查找信息')
print('q.退出')
print('=' * 20)
#1.添加学生
def add_student():
student_list = []
while True:
with open('./student.txt','r',encoding='utf-8') as f:
content = f.read()
name1 = input('请输入学生的姓名:')
age1 = input('请输入学生的年龄:')
phone1 = input('请输入学生的电话:')
dict1 = {'name': name1, 'age': age1, 'phone': phone1}
student_list.append(dict1)
f = open('./student.txt', 'w', encoding='utf-8')
f.write(str(dict1)+'\n')
f.close()
print('=' * 20)
print('添加成功!!!')
print('1.继续添加')
print('2.返回上层')
print('=' * 20)
x1 = int(input('请选择:'))
if x1 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
#2.删除学生
def del_student():
while True:
name2 = input('请输入要删除的学生姓名:')
with open('./student.txt','r',encoding='utf-8') as f:
student_list = eval(f.read())
print(student_list)
for student in student_list:
if student['name'] == name2:
student_list.remove(student)
print(student_list)
with open('./student.txt','r',encoding='utf-8') as f:
content = f.write(str(student_list))
print('删除成功')
print('=' * 20)
print('1.继续删除')
print('2.退出')
print('=' * 20)
x1 = int(input('请选择:'))
if x1 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
#3.修改信息
def change_student():
while True:
with open('./student.txt','r',encoding='utf-8') as f:
student_list = eval(f.read())
print(student_list)
name3 = input('请输入要修改的姓名:')
for student in student_list:
if name3 == student['name']:
print('=' * 20)
print(student)
print('=' * 20)
print('1.修改年龄')
print('2.修改电话')
x3 = input('请选择:')
if x3 == 1:
age2 = input('请输入修改后的年龄:')
student['age']= age2
print('修改成功')
else:
tel2 = input('请输入修改后的电话')
student['tel'] = tel2
print('修改成功')
with open('./student.txt', 'r',encoding='utf-8') as f:
content = f.write(str(student_list))
print('1.继续修改')
print('2.退出')
x1 = int(input('请选择:'))
if x1 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
#4.查找信息
def find_student():
while True:
with open('./student.txt','r',encoding='utf-8') as f:
student_list = eval(f.read())
print('1.按姓名查找')
print('1.按年龄查找')
print('1.按电话查找')
print('=' * 20)
x4 = int(input('请选择:'))
print('=' * 20)
if x4 == 1:
name4 = input('请输入要查找的学生姓名:')
for student in student_list:
if name4 == student['name']:
print(student)
print('=' * 20)
print('1.继续查找')
print('2.退出')
print('=' * 20)
x4 = int(input('请选择:'))
if x4 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
elif x4 == 2:
age4 = input('请输入要查找的学生年龄:')
for student in student_list:
if student['age'] == age4:
print(student)
print('=' * 20)
print('1.继续查找')
print('2.退出')
print('=' * 20)
x4 = int(input('请选择:'))
if x4 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
elif x4 == 3:
tel4 = input('请输入查找的学生电话:')
for student in student_list:
if student['tel'] == tel4:
print(student)
print('=' * 20)
print('1.继续查找')
print('2.退出')
print('=' * 20)
x4 = int(input('请选择:'))
if x4 == 1:
continue
else:
show_menu()
x2 = int(input('请选择:'))
if x2 == 1:
add_student()
elif x2 == 2:
del_student()
elif x2 == 3:
change_student()
elif x2 == 4:
find_student()
else:
print('欢迎下次使用')
break
#运行
while True:
show_menu()
number1 = int(input('请选择:'))
if number1 == 1:
add_student()
elif number1 == 2:
del_student()
elif number1 == 3:
change_student()
elif number1 == 4:
find_student()
elif str(number1) == 'q':
print('退出系统')
break
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