str.isdecimal() 和 str.isdigit() 区别示例

阅读 python 文档我了解到 .isdecimal() 和 .isdigit() 字符串函数，但我没有发现文献对它们的可用区别太清楚。有人可以向我提供这两个函数的区别的代码示例吗？

类似行为：

>>> str.isdecimal('1')
True
>>> str.isdigit('1')
True

>>> str.isdecimal('1.0')
False
>>> str.isdigit('1.0')
False

>>> str.isdecimal('1/2')
False
>>> str.isdigit('1/2')
False

There are differences, but they're somewhat rare^*. It mainly crops up with various unicode characters, such as ²:

>>> c = '\u00B2'
>>> c.isdecimal()
False
>>> c.isdigit()
True

您还可以使用以下命令进一步深入仔细区分 unicode 的兔子洞：isnumeric method:

>>> c = '\u00BD' # ½
>>> c.isdecimal()
False
>>> c.isdigit()
False
>>> c.isnumeric()
True

^*At least, I've never encountered production code that needs to distinguish between strings that contain different types of these exceptional situations, but surely use cases exist somewhere.