str.lower (upper(isalpha(islower(isupper(isnumeruic(split分割(strip去除(replace(old,new)替换
格式化,format
math
random
jieba
错误w

str.lower (upper(isalpha(islower(isupper(isnumeruic(split分割(strip去除(replace(old,new)替换
格式化,format
math
random
jieba
错误w