我正在写一系列文本菜单.下面的类和子类运行没有问题.但我正在审查我的编码,我想知道….是否可以,我没有在类中使用def __init __(self)？我应该将数据成员放在def __init __(Self)中：如self.images =(),self.options =()？如果我这样做,那么我不能使用abc模块来限制,是否正确？
class BaseMenu(object):
__metaclass__ = abc.ABCMeta
@abc.abstractproperty
def options(self):
pass
@abc.abstractproperty
def menu_name(self):
pass
def display(self):
header = "FooBar YO"
term = getTerminalSize()
#sys.stdout.write("\x1b[2J\x1b[H")
print header.center(term, '*')
print self.menu_name.center(term, '+')
print "Please choose which option:"
for i in self.options:
print(
str(self.options.index(i)+1) + ") "
+ i.__name__
)
value = int(raw_input("Please Choose: ")) - 1
self.options[value](self)
class Servers(BaseMenu):
menu_name = "Servers"
images = ()
foo = ()
def get_images(self):
if not self.images:
self.images = list_images.get_images()
for img in self.images:
print (
str(self.images.index(img)+1) + ") "
+ "Name: %s\n ID: %s" %
(img.name, img.id)
)
def get_foo(self):
if not self.foo:
self.foo = list_list.get_list()
for list in self.foo:
print "Name:", list.name
print " ID:", list.id
def create_servers(self):
create_server.create(self)
options = (
get_images,
get_foo,
create_servers
)