# Getting Started with python3 # 1 Learn Basic Knowledge

Hi, my name is beatbox4108.
This time, I would like to write an introduction to python3.
Since I am a beginner of qitta, please forgive the notation that is difficult to see.

## Target person

Beginners in programming and trying to learn python
Teachers who want to use python in the field of education but do not know how to explain

## Premise

python3 is installed on your pc.
Understand how to use the development environment.

## I will write it first

Save the following content as test.py and try running it.

`test.py`

```
print("HelloWorld")
```

result:

```
HelloWorld
```

Yes. It seems like you'll hear a voice saying "I know" __, but it's still __ good source code __.
The kind of ``print``` that we just used is called the`

`function`

`. ```print```The contents of the parentheses behind```argument```It's called. The arguments are enclosed in ```" ```, which will be explained later. I will explain how to use the `

`print``` function that you will use from now on.

### How to use the print function

```
print(Argument 1,Argument 2...)
```

Now that you know how to use the `` `print``` function, let's do four arithmetic operations.

## Do four arithmetic operations

```
print(41+8)
print(41-8)
print(41*8)
print(41/8)
```

The following calculations are written in the order of ``addition-> subtraction-> multiplication-> division``

, but what are ``*``

and ``/``

? ..
The answer to this question is __ because there are no multiplication and division symbols on the __keyboard.
Division will result in an error if divided by 0.

```
ZeroDivisionError: division by zero
```

By the way, I will learn about advanced calculations next time.

This time it ends. Please look forward to the next time.
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