小册名称：Python合辑4-130个字符串操作示例
如何在 Python 中小写字符串
text = ['Canada', 'JAPAN']text = [txt.lower() for txt in text]print(text)
text = ['Canada', 'JAPAN']
text = [txt.lower() for txt in text]
print(text)
Output:
['canada', 'japan']
