輸入結(jié)果有誤
為什么執(zhí)行老師的程序，class?OldStyle:
?def?_init_(self,name,description):
??self.name=name
??self.description=description
class?NewStyle(object):
?def?_init_(self,name,description):
??self.name=name
??self.description=description
if?__name__=='_main_':
?old=OldStyle('old','OldStyle')
?print(old)
?print?(type(old))
?print(dir(old))
?print('-------------------------------------')
?new=NewStyle('new','NewStyle')
?print?(type(new))
?print(dir(new))編譯成功，卻沒(méi)結(jié)果
2018-12-05
class OldStyle:
#這里__init__是兩下劃線哦
def __init__(self, name, description):
self.name = name
self.description = description
class NewStyle(object):
#這里也__init__是兩下劃線哦
def __init__(self, name, description):
self.name = name
self.description = description
#?這里是 '__main__'?是兩下劃線哦? 因?yàn)椋篲_name__ == '_main_'?是不相等，所以這個(gè)if下的代碼就沒(méi)在執(zhí)行
if __name__ == '__main__':
old = OldStyle('old', 'OldStyle')
print(old)
print(type(old))
print(dir(old))
print('-------------------------------------')
new = NewStyle('new', 'NewStyle')
print(type(new))
print(dir(new))