Name: PY4E - Pythonオブジェクト (第14章 後編) (PY4E - Python Objects (Chapter 14 Part 2))
Uploaded: 2021-01-14T07:53:31.000Z
Duration: 8 min 19 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

程度の副詞を表す句型

- Okay so now that we've
gotten through the definitions,

命令形

But hey, look at this, we've got ourselves

And actually you can see
here some other classes,

there's clearly sort of a snowflake class

Somewhere out here there
is a snowflake class

and a gingerbread class,
but we got a snowman object

and a snowman object and a snowman class.

So class is the template,
object is the instance.

So let's take a look at what we got here.

Classes is in the reserved
word, kind of like def.

to this class for the
rest of this program.

Inside the class, there
are generally two things.

There is some data and
this just looks like

in that it starts with a
def, has a colon, indents.

And so there is no function called party.

There's a function called party
within party animal class.

And we'll talk in a second
about this self thing.

So this is not actually
executing any code.

Using the party animal template or class,

And then once we make that, we
stick it in the variable an.

And then we're going to
call this party method

Now this self thing, and
we'll take a look at the self.

it's just kind of an
equivalent of this syntax.

and passing the instance
in as the first parameter.

and a second object,
which we will eventually,

you will see that that works
a little bit differently.

And so, this syntax is a
short version of that syntax.

So if we watch how this
executes, it's oops.

And that's what basically constructing it,

and we make a variable x,
we make some code party.

that basically takes
this an and passes it in

as the first parameter,
which is used as self.

And so, self.x, which is what we're doing

X starts out as zero because
when it was constructed

and now it looks up self.x, which is zero,

And then the code returns and it goes down

Self.x is two, add one to
it and stick it back in.

So this becomes three
and we print out three.

And so you can think
of this as constructing

the object and then associating
it with this an variable.

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PY4E - Pythonオブジェクト (第14章後編) (PY4E - Python Objects (Chapter 14 Part 2))

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stick

eventually

equivalent

PY4E - Pythonオブジェクト (第14章 後編) (PY4E - Python Objects (Chapter 14 Part 2))

sort

stick

eventually

equivalent

PY4E - Pythonオブジェクト (第14章後編) (PY4E - Python Objects (Chapter 14 Part 2))