与继承的方法调用相比，具有像len()、max()和min()这样的静态函数的优点

i am a python newbie, and i am not sure why python implemented len(obj), max(obj), and min(obj) as a static like functions (i am from the java language) over obj.len(), obj.max(), and obj.min()i am a python newbie, and i am not sure why pyt