class Instrument():
def make_sound(self):
pass
class Piano(Instrument):
def make_sound(self):
print('二胡正在演奏')
class Erhu(Instrument):
def make_sound(self):
print('钢...
| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
|---|---|---|---|---|---|---|---|
| 《Python乐器》 | 421字 | 3.0分钟 | 100% | 201 CPM | 14 次 | 0 | 良好，向更快挑战！ |
| Inspirational quotes: 赚钱模式越多越说明你没有模式。 ——马云 | |||||||
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