这是我想要的输出：
Name: Smith,Age: 20,ID: 9999
到目前为止，这是我的代码
class PersonData:
def __init__(self):
self.last_name = ''
self.age_years = 0
def set_name(self,user_name):
self.last_name = user_name
def set_age(self,num_years):
self.age_years = num_years
# Other parts omitted
def print_all(self):
output_str = 'Name: ' + self.last_name + ',Age: ' + str(self.age_years)
return output_str
class StudentData(PersonData):
def __init__(self):
PersonData.__init__(self) # Call base class constructor
self.id_num = 0
def set_id(self,student_id):
self.id_num = student_id
def get_id(self):
return self.id_num
course_student = StudentData()
course_student = StudentData()
course_student.get_id(9999)
course_student.set_age(20)
course_student.set_name("Smith")
print('%s,ID: %s' % (course_student.print_all(),course_student.get_id()))
目前，它没有运行。如果有人可以帮忙，我将不胜感激。它返回第34行的类型错误，我不确定如何更正它。任何帮助将不胜感激。