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tishi = """
*****************************************************
【学生成绩管理系统】
q. 退出学生成绩系统
1. 显示学生成绩信息
2. 新建学生成绩信息
3. 查询学生成绩信息
4. 删除学生成绩信息
5. 修改学生成绩信息
6. 查询及格学生信息
******************************************************"""
students_list = []
students_60 = []
class Student:
def __init__(self,num:int,name:str,sex:str,grade:float):
self.num = num
self.name = name
self.sex = sex
self.grade = grade
def modify_by_name(self,new_name):
self.name = new_name
def display(students_list):
print("1. 显示全部信息")
print("学号\t姓名\t性别\t成绩\t")
for stu in students_list:
print(f'{stu["name"]}\t{stu["chinese"]}\t{stu["math"]}\t{stu["english"]}\t{stu["total"]}')
def add():
global students_list
num = int(input("请输入学生的学号:"))
name = input("请输入学生的名字:")
sex = input("请输入学生性别:")
grade = int(input("请输入学生分数:"))
student = Student(num=num,name=name,sex=sex,grade=grade)
students_list.append(student)
def delect():
global students_list
cnum = int(input("请输入需要删除的学生学号:"))
for each in students_list:
if each.num == cnum:
students_list.remove(each)
else:
print("查无此人,请重新输入")
def find_by_num():
global students_list
cnum = int(input("请输入需要查询成绩的学生学号:"))
for each in students_list:
if each.num == cnum:
print(f"此学生的成绩为{each.grade}")
return "查无此人,请重新输入"
def modify_by_name():
global students_list
name = input("请输入需要修改的学生名字:")
for each in students_list:
if each.name == name:
each.modify_by_name(input("请输入正确的学生名字"))
return '改名成功'
return f'找不到学生{name}'
def select_by_num_60():
global students_list
global students_60
for each in students_list:
if each.num >= 60:
students_60.append(each.name)
print(students_60)
while True:
print(tishi)
handle = input('请选择你要的操作选项:')
if handle == 'q':
print('q. 退出系统')
break
elif handle == '1':
display(students_list)
elif handle == '2':
add(students_list)
elif handle == '3':
find_by_num(students_list)
elif handle == '4':
delect(students_list)
elif handle == '5':
modify_by_name(students_list)
elif handle == '6':
select_by_num_60(students_list)
else:
print('请输入正确的操作选项!')
- tishi = """
- *****************************************************
- 【学生成绩管理系统】
- q. 退出学生成绩系统
- 1. 显示学生成绩信息
- 2. 新建学生成绩信息
- 3. 查询学生成绩信息
- 4. 删除学生成绩信息
- 5. 修改学生名字信息
- 6. 查询及格学生信息
- ******************************************************"""
- students_list = []
- students_60 = []
- class Student:
- def __init__(self,num:int,name:str,sex:str,grade:float):
- self.num = num
- self.name = name
- self.sex = sex
- self.grade = grade
- def modify_by_name(self,new_name):
- self.name = new_name
- def display(students_list):
- print("1. 显示全部信息")
- print("学号\t姓名\t性别\t成绩\t")
- for stu in students_list:
- print(f'{stu.num}\t{stu.name}\t{stu.sex}\t{stu.grade}')
- def add():
- global students_list
- num = int(input("请输入学生的学号:"))
- name = input("请输入学生的名字:")
- sex = input("请输入学生性别:")
- grade = int(input("请输入学生分数:"))
- student = Student(num=num,name=name,sex=sex,grade=grade)
- students_list.append(student)
- def delect():
- global students_list
- cnum = int(input("请输入需要删除的学生学号:"))
- for each in students_list:
- if each.num == cnum:
- students_list.remove(each)
- else:
- print("查无此人,请重新输入")
- def find_by_num():
- global students_list
- cnum = int(input("请输入需要查询成绩的学生学号:"))
- for each in students_list:
- if each.num == cnum:
- print(f"此学生的成绩为{each.grade}")
- return "查无此人,请重新输入"
- def modify_by_name():
- global students_list
- name = input("请输入需要修改的学生名字:")
- for each in students_list:
- if each.name == name:
- each.modify_by_name(input("请输入正确的学生名字"))
- return '改名成功'
- return f'找不到学生{name}'
- def select_by_num_60():
- global students_list
- global students_60
- for each in students_list:
- if each.grade >= 60:
- students_60.append(each.name)
- print(students_60)
- while True:
- print(tishi)
- handle = input('请选择你要的操作选项:')
- if handle == 'q':
- print('q. 退出系统')
- break
- elif handle == '1':
- display(students_list)
- elif handle == '2':
- add()
- elif handle == '3':
- print(find_by_num())
- elif handle == '4':
- delect()
- elif handle == '5':
- print(modify_by_name())
- elif handle == '6':
- select_by_num_60()
- else:
- print('请输入正确的操作选项!')
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