Project goal:
complete an online student information management system
- The data is temporarily stored in the variable list
- Realize the operation of adding, deleting and querying student information
Through actual cases, exercise and consolidate the basic knowledge of Python
as shown in the figure below: Student information management system interface
1. Initial interface
2. Add student information
3. After adding student information , you need to view student information
4. Delete specified student information
5. Exit student information management After the system
gets a project, first establish an analysis idea:
- First analyze what functions of the project need to be implemented
- What are the core functions of the project
- What is the interface display
- How the interface interacts with the user
'''
1.学员信息数据源
2.实现的功能：
1查看学员信息
2添加学员信息
3删除学员信息
4退出系统
3.界面交互
'''
# 1.学员信息数据源
stu_list=[
{
'name':'zhangsan','age':20,'classid':'python01'},
{
'name':'lisi','age':28,'classid':'python02'},
{
'name':'wangwu','age':21,'classid':'python03'}]
# 2.1实现功能-查看学员信息
def show_stus_info():
'''
:return:
'''
if len(stu_list)==0:
print('='*20,'没有学员信息','='*20)
return
print('|{0:<5}|{1:<10}|{2:<5}|{3:<10}|'.format('sid','name','age','classid'))
print('-'*40)
for i,stu_dict in enumerate(stu_list):
print('|{0:<5}|{1:<10}|{2:<5}|{3:<10}|'.format(i+1,stu_dict['name'],stu_dict['age'],stu_dict['classid']))
# 测试2.1 查看学员信息
#show_stus_info()
# 2.2实现功能-添加学员信息
def add_stu(name,age,classid):
stu_dict={
}
stu_dict['name']=name
stu_dict['age']=age
stu_dict['classid']=classid
stu_list.append(stu_dict)
# 测试2.2添加学员信息
add_stu('yh',13,'python04')
# show_stus_info()
# 2.3 删除学员信息
def del_stu(sid):
sid_int=int(sid)
stu_list.pop(sid_int-1)
# 2.3 删除学员信息
# del_stu(3)
# show_stus_info()
# 2.4 退出系统
def loginOut():
pass
# 界面交互
while True:
# 输出初始界面
print('='*12,'学员管理系统','='*12)
print('{:1} {:13} {:15}'.format('','1.查看学员信息','2.添加学员信息'))
print('{:1} {:13} {:15}'.format('', '3.删除学员信息', '4.退出系统'))
print('='*40)
key=input('请输入对应的选择')
# 根据输入值，执行对应操作
if key=='1':
print('='*12,'学员信息浏览','='*12)
show_stus_info()
input('按回车继续：')
elif key=='2':
print('='*12,'添加学员信息','='*12)
name=input('请输入姓名：')
age = input('请输入年龄：')
classid = input('请输入班级号：')
add_stu(name,age,classid)
show_stus_info()
input('按回车继续：')
elif key=='3':
print('=' * 12, '删除学员信息', '=' * 12)
show_stus_info()
sid=input('请你输入要删除的学员的sid')
del_stu()
show_stus_info()
input('按回车继续：')
elif key=='4':
loginOut()
print('=' * 12, '再见', '=' * 12)
break
else:
print('=' * 12, '无效操作', '=' * 12)
Realization effect display:
D:\python3.8.6\python.exe D:/爬虫/pythonProject/实战/学员信息管理系统.py
============ 学员管理系统 ============
1.查看学员信息 2.添加学员信息
3.删除学员信息 4.退出系统
========================================
请输入对应的选择1
============ 学员信息浏览 ============
|sid |name |age |classid |
----------------------------------------
|1 |zhangsan |20 |python01 |
|2 |lisi |28 |python02 |
|3 |wangwu |21 |python03 |
|4 |yh |13 |python04 |
按回车继续：2
============ 学员管理系统 ============
1.查看学员信息 2.添加学员信息
3.删除学员信息 4.退出系统
========================================
请输入对应的选择2
============ 添加学员信息 ============
请输入姓名：yh2
请输入年龄：23
请输入班级号：iii
|sid |name |age |classid |
----------------------------------------
|1 |zhangsan |20 |python01 |
|2 |lisi |28 |python02 |
|3 |wangwu |21 |python03 |
|4 |yh |13 |python04 |
|5 |yh2 |23 |iii |
按回车继续：
============ 学员管理系统 ============
1.查看学员信息 2.添加学员信息
3.删除学员信息 4.退出系统
========================================
请输入对应的选择4
============ 再见 ============
Process finished with exit code 0
Project actual combat summary:
- Information input and output
- Use of common data types
- Branch structure
- Cyclic structure
- Function definition and use
The project implementation process is relatively simple. As a beginner, practice how to understand how computers deal with problems. In fact, the most important thing is the transformation of thinking. You need to transform real business problems into computer-understandable codes through your analysis and help you realize them.