要求： 请编写函数实现学生管理系统
def founc1():
import json
with open('number.json', 'r', encoding='utf-8') as f:
content = f.read()
number = json.loads(content)
with open('stu.json', 'r', encoding='utf-8') as f:
content = f.read()
all_student = json.loads(content, encoding='utf-8')
while True:
print("你好！欢迎")
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("=====================================")
select = int(input("请选择(1-5):"))
if select == 1:
while True:
stu_dict = {}
number += 1
name = input("请输入学生姓名：")
stu_dict["name"] = name
age = int(input("请输入学生年龄："))
stu_dict["age"] = age
tel = input("请输入学生电话：")
stu_dict["电话"] = tel
id_num = "1902" + str(number).zfill(4)
stu_dict["学号"] = id_num
all_student.append(stu_dict)
print("===添加成功！")
with open('stu.json', 'w', encoding='utf-8') as f:
json1 = json.dumps(all_student)
f.write(json1)
with open('number.json', 'w', encoding='utf-8') as f:
json2 = json.dumps(number)
f.write(json2)
print("=====================================")
print("1.继续""\n""2.返回 ")
elect = int(input("请选择(1-2)"))
if elect == 2:
break
elif select == 2:
while True:
print("1. 查看所有学生")
print("2. 按照姓名查找")
print("3. 按照学号查找")
print("4. 返回")
print("=====================================")
select2 = int(input("请选择(1-4):"))
if select2 == 1:
for stu in all_student:
for index in stu:
print( index, ":", stu[index] ,end=" ")
print("")
elif select2 == 2:
name_search = input("请输入要查找的学生姓名：")
for stu in all_student:
if stu["name"] == name_search:
print(stu)
break
else:
print("你查找的学生不存在")
elif select2 == 3:
id_search = input("请输入要查找的学生学号：")
for stu in all_student:
if stu["学号"] == id_search:
print(stu)
break
else:
print("你查找的学生不存在")
elif select2 == 4:
break
elif select == 3:
while True:
print("1. 通过学号修改")
print("2. 返回")
print("=====================================")
select4 = int(input("请选择(1-2):"))
if select4 == 1:
id1 = input("请输入要修改信息的学生学号：")
change_stu = []
for stu in all_student:
if stu["学号"] == id1:
change_stu = stu
break
else:
print("你查找的学生不存在")
break
while True:
print("1. 修改姓名")
print("2. 修改年龄")
print("3. 修改手机号")
print("4. 返回")
print("=====================================")
select5 = int(input("请选择(1-4):"))
if select5 == 1:
change_stu["name"] = input("请输入修改后的姓名")
print("修改成功")
elif select5 == 2:
change_stu["age"] = int(input("请输入修改后的年龄"))
print("修改成功")
elif select5 == 3:
change_stu["tel"] = input("请输入修改后的学号")
print("修改成功")
elif select5 == 4:
break
with open('stu.json', 'w', encoding='utf-8') as f:
json1 = json.dumps(all_student)
f.write(json1)
if select4 == 2:
break
elif select == 4:
while True:
print("1. 通过学号修改")
print("2. 返回")
print("=====================================")
select3 = int(input("请选择(1-2):"))
if select3 == 1:
del_stu = input("请输入要删除的学生学号：")
for index in range(len(all_student)):
if all_student[index]["学号"] == del_stu:
all_student.pop(index)
print("删除成功")
break
else:
print("你想要删除的学生不存在")
elif select3 == 2:
break
with open('stu.json', 'w', encoding='utf-8') as f:
json1 = json.dumps(all_student)
f.write(json1)
elif select == 5:
break
stu = founc1()
