class Student(object): name = "" age = 0 major = "" # The class "constructor" - It's actually an initializer def __init__(self, name, age, major): self.name = name self.age = age self.major = majordef make_student(name, age, major): student = Student(name, age, major) return student
请注意，即使Python哲学中的原则之一是 “应该有一个，最好只有一个 ，这是 显而易见的方式”
，但仍然有多种方式可以做到这一点。您还可以使用以下两个代码段来利用Python的动态功能：
class Student(object): name = "" age = 0 major = ""def make_student(name, age, major): student = Student() student.name = name student.age = age student.major = major # Note: I didn't need to create a variable in the class definition before doing this. student.gpa = float(4.0) return student
我更喜欢前者，但在某些情况下后者可能会有用–一种是在使用文档数据库（如MongoDB）时。
