练手项目 宠物管理系统
PETS= []
FILENAME ='pets.txt'
try:
with open(FILENAME, 'r', encoding='utf-8')as fp:
for linein fp:
info = line.split("/")
ID = info[0]
name = info[1]
categary = info[2]
price = info[3]
PETS.append({'id':ID,'name':name,'categary':categary,'price':price})
except FileNotFoundError:
fp =open(FILENAME,'w',encoding='utf-8')
fp.close()
def add_pet():
Id =input('请输入宠物编号:')
name =input('请输入宠物名:')
categary =input('请输入宠物名称:')
price =input('请输入宠物价格:')
pet = {'id':Id,'name':name,'categary':categary,'price':price}
PETS.append(pet)
print('恭喜你添加成功')
def search_pet():
name =input('请输入宠物的名字: ')
for petin PETS:
if name == pet['name']:
test ="编号:{},姓名:{},名称:{},价格:{}".format(
pet['id'],
pet['name'],
pet['categary'],
pet['price']
)
print(test)
def del_pet():
pet_id =input('请输入要删除宠物的编号:')
for petin PETS:
if pet_id == pet['id']:
PETS.remove(pet)
print('删除成功')
break
def list_pet():
for petin PETS:
test ="编号:{},姓名:{},名称:{},价格:{}".format(
pet['id'],
pet['name'],
pet['categary'],
pet['price']
)
print(test)
def exit_program():
with open(FILENAME,'w',encoding='utf-8')as fp:
lines = []
for pet in PETS:
test ="{ID}/{name}/{categary}/{price}".format(#格式化成字符串才可以保存
ID = pet['id'],
name = pet['name'],
categary = pet['categary'],
price = pet['price']
)
print(test)
lines.append(test+'\n')
fp.writelines(lines)
def main():
print('='*30)
print('1.添加宠物')
print('2.查找宠物')
print('3.删除宠物')
print('4.列出宠物')
print('5.退出程序')
print('='*30)
while True:
option =input('请输入序号:')
if option =='1':
add_pet()
elif option =='2':
search_pet()
elif option =='3':
del_pet()
elif option =='4':
list_pet()
elif option =='5':
exit_program()
break
else:
print('请输入正确的选项')
main()
