求各位们这个实在不会

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class people:
    def __init__(self, mz=None, nl=None, xb=None):
        self.mz = mz
        if 0 <= nl <= 99:
            self.nl = nl
        else:
            self.nl = 0
        if xb in "男女":
            self.xb = xb
        else:
            self.xb = "未知"


class student(people):
    def __init__(self, mz=None, nl=None, xb=None, xh=None, xx=None):
        super(student, self).__init__(mz, nl, xb)
        self.xh = xh
        self.xx = xx


class worker(people):
    def __init__(self, mz=None, nl=None, xb=None, gh=None, gz=None):
        super(worker, self).__init__(mz, nl, xb)
        self.gh = gh
        self.gz = gz


class highschoolstudent(student):
    def __init__(self, mz=None, nl=None, xb=None, xh=None, xx=None, by=None):
        super(highschoolstudent, self).__init__(mz, nl, xb, xh, xx)
        self.by = by


class collegestudent(student):
    def __init__(self, mz=None, nl=None, xb=None, xh=None, xx=None, zy=None, gz=None):
        super(collegestudent, self).__init__(mz, nl, xb, xh, xx)
        self.zy = zy
        self.gz = gz


class graduatestudent(student):
    def __init__(self, mz=None, nl=None, xb=None, xh=None, xx=None, fx=None, gz=None):
        super(graduatestudent, self).__init__(mz, nl, xb, xh, xx)
        self.fx = fx
        self.gz = gz


class softwareengineer(worker):
    def __init__(self, mz=None, nl=None, xb=None, gh=None, gz=None, jb=None, xx=None):
        super(softwareengineer, self).__init__(mz, nl, xb, gh, gz)
        self.jb = jb
        self.xx = xx

g = softwareengineer('hhy', 18, "女", "001", "3000", "5", "python")
print(f'mz:{g.mz}, nl:{g.nl}: xb:{g.xb}, xh"{g.gh}, xx:{g.gz}, fx"{g.jb},gz:{g.xx}')

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