学生管理系统 Python语言 – Python量化投资

学生管理系统 Python语言

def show_student():
print((‘*’*20).center(55))
print(‘1.添加学生信息’.center(50))
print(‘2.修改学生信息’.center(50))
print(‘3.删除学生信息’.center(50))
print(‘4.查询学生信息’.center(50))
print(‘5.退出信息系统’.center(50))
print(‘6.显示学生信息’.center(50))
print((‘*’*20).center(55))

def add_student():
a_name = input(‘please input the student name : ‘)
a_sex = input(‘please input the the sex :’)
a_height = input(‘please input the height:’)
add_diclt = {‘name’:a_name ,‘sex’:a_sex ,‘height’:a_height}
sum_list.append(add_diclt)
return sum_list
def alter_student():
al1 = 0
alte = input(‘please input the alter the student message name :’)
for al in range(len(sum_list)):
if sum_list[al][‘name’] == alte :
print(sum_list[al])
al1 = al
else:
if al == len(sum_list)-1:
print(‘do not find the student name ‘)
exit()
continue

a_name = input(‘please input the student name : ‘)
a_sex = input(‘please input the the sex :’)
a_height = input(‘please input the height:’)
add_diclt = {‘name’:a_name ,‘sex’:a_sex ,‘height’:a_height}
sum_list.insert(al1,add_diclt)
sum_list.pop(al1+1)
return sum_list
def del_student():
dll = 0
de_name = input(‘please input the del the student message name :’)
for dl in range(len(sum_list)):
if sum_list[dl][‘name’] == de_name:
print(sum_list[dl])
dll = dl
else:
if dl == len(sum_list)-1:
print(‘do not exit’)
exit()
continue
sum_list.pop(dll)
print(‘删除成功!’)
return sum_list
def find_student():
find_name = input(‘please input the find the student message name :’)
for f1 in range(len(sum_list)):
if sum_list[f1][‘name’] == find_name:
print(sum_list[f1])
else:
if f1 == len(sum_list)-1:
print(‘not find your input the name .please input continue’)
find_student()
continue
return sum_list

def main_student():
while 1:
show_student()
s1 = input(‘please input the number:’)
if s1 == ‘1’:
print(add_student())
if s1 == ‘2’:
print(alter_student())
if s1 == ‘3’:
del_student()
if s1 == ‘4’:
find_student()
if s1 == ‘5’:
print(‘是否退出,如果退出输入Y,如果继续,输入N ‘)
e1 = input(‘<<<‘)
if e1.upper() == ‘Y’:
exit()
else:
show_student()
if s1 == ‘6’:
print(sum_list)

sum_list = [] #总列表
lis1 = [‘deng’,‘123’,‘taibai’,‘123456’,‘alex’,‘2019’,‘Jing’,‘2017’]
lis2 = []
i = 3
while i > 0:
username = input(‘please input the username :’)
password = input(‘please input the password : ‘)
if username in lis1[0::2] and password in lis1[1::2] :
print(‘验证成功…’)
lis2.append(username)
lis2.append(password)
break
else:
i -= 1
print(‘验证失败,请再次尝试,您还有’+str(i)+‘次机会’)
continue
if i == 0:
exit()
print(‘欢迎{name}进入学生管理系统’.format(name = lis2[0]))
main_student()
https://www.cnblogs.com/if-it-is-possible/p/11469635.html

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