下载anaconda : https://www.anaconda.com/download/success
类和实例 :__init__是构造函数方法,自带有个self,
classStudent(object):def__init__(self,name,age):self.name=name self.age=agedefget_grade(self):ifself.score>=90:return"A"elifself.score>=60:return"B"else:return"C"cc=Student("cc",11)print(Student)defprint_score(std):print('%s %s'%(std.name,std.age))print_score(cc)