python3拼接符

```python

ship_description = 'This is our beautiful ship, the ' + ship_name + '.'

```

```python

ship_description = f'This is our beautiful ship, the {ship_name}.'

```

```python

price =

duration =

description = f'You can rent our ship for ${price} per hour, for a minimum of {duration} hours.'

```

这种方式让我司直接在字符串中嵌入变量，使得代码更易于理解和维护。

"The package has been delivered to {street}, {city}, {state}."。

"Dear {parent_name}, your child {child_name} has completed lesson {lesson_number}."。

"The water level at reservoir {reservoir_id} is currently {water_level} meters."。