摘要： 升序，逆序，字典 阅读全文

摘要： 字符串转换，如：IloveYOUmoreTHANiCANsay => I love you more than i can say 阅读全文

摘要： # 建立学生类class Student: def __init__(self,name,num,age,score): self.name = name self.num = num self.age = age self.score = score def __str__(self): retu 阅读全文