format

辞書

hoge = {'a': 'aa', 'b': 'bb'}
print('a is {a}\nb is {b}'.format(**hoge))

a is aa
b is bb


### 左寄せ、中央寄せ、右寄せ

```python
hoge = {'a': 'left', 'b': 'center', 'c': 'right'}
print('left  : {a:<10}'.format(**hoge))
print('center: {b:^10}'.format(**hoge))
print('right : {c:>10}'.format(**hoge))

left : left
center: center
right : right


### 左寄せ、中央寄せ、右寄せ（0埋め）
```python
hoge = {'a': 'left', 'b': 'center', 'c': 'right'}
print('left  : {a:<010}'.format(**hoge))
print('center: {b:^010}'.format(**hoge))
print('right : {c:>010}'.format(**hoge))

left : left000000
center: 00center00
right : 00000right


### 左寄せ、中央寄せ、右寄せ（文字埋め）
```python
hoge = {'a': 'left', 'b': 'center', 'c': 'right'}
print('left  : {a:_<10}'.format(**hoge))
print('center: {b:_^10}'.format(**hoge))
print('right : {c:_>10}'.format(**hoge))

left : left______
center: center
right : _____right


### 桁区切り、小数点
```python
print('{:,}'.format(1234.5678))
print('{:,.1f}'.format(1234.5678))
print('{:,.2f}'.format(1234.5678))
print('{:,.3f}'.format(1234.5678))
print('{:,.4f}'.format(1234.5678))
print('{:,.5f}'.format(1234.5678))

1,234.5678
1,234.6
1,234.57
1,234.568
1,234.5678
1,234.56780


## ｆ文字列

```python
a = 'aa'
b = 'bb'
print(f'a is {a}\nb is {b}')

a is aa
b is bb