如何将多个不公开的项添加到类中？(how to add multiple unlisted items to a class?)

如何将多个不公开的项添加到类中？(how to add multiple unlisted items to a class?)

这可能是一个非常简单的问题，之前可能已被问过，但这可能是我缺乏词汇量的问题，所以我提前道歉。

从python文档 ：

class Dog: def __init__(self, name): self.name = name self.tricks = [] # creates a new empty list for each dog def add_trick(self, trick): self.tricks.append(trick) d = Dog('Fido') d.add_trick('roll over') d.add_trick('fetch') d.tricks

按预期返回：

['roll over', 'fetch']

但是，如果我然后运行：

d.add_trick('play dead', 'high five')

我收到错误，所以我尝试了：

d.add_trick(['play dead', 'high five'])

但这给了我：

d.tricks ['roll over', 'fetch', ['play dead', 'high five']]

当我想要：

['roll over', 'fetch', 'play dead', 'high five']

如何取消添加到课程中的项目列表？

This may be a very simple question and has probably been asked before, but it's probably an issue of me lacking vocabulary, so I apologize in advance.

From the python documentation:

class Dog: def __init__(self, name): self.name = name self.tricks = [] # creates a new empty list for each dog def add_trick(self, trick): self.tricks.append(trick) d = Dog('Fido') d.add_trick('roll over') d.add_trick('fetch') d.tricks

This returns, as expected:

['roll over', 'fetch']

But if I then run:

d.add_trick('play dead', 'high five')

I get an error, so I tried:

d.add_trick(['play dead', 'high five'])

But that gives me:

d.tricks ['roll over', 'fetch', ['play dead', 'high five']]

When I want:

['roll over', 'fetch', 'play dead', 'high five']

How can I unlist a list of items added to a class?

最满意答案

使用extend ：

d.tricks.extend(['play dead', 'high five']) d.tricks ['roll over', 'fetch', 'play dead', 'high five']

或者您可以将add_tricks更改为：

def add_trick(self, *trick): self.tricks.extend(trick)

Use extend:

d.tricks.extend(['play dead', 'high five']) d.tricks ['roll over', 'fetch', 'play dead', 'high five']

Or you could change add_tricks to:

def add_trick(self, *trick): self.tricks.extend(trick)