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  1. class Student(object):
  2.     count = 0
  3.  
  4.  
  5.     def __init__(self, name):
  6.         self.name = name
  7.         Student.count+=1
  8.  
  9. # 测试:
  10. if Student.count != 0:
  11.     print('测试失败!')
  12. else:
  13.     bart = Student('Bart')
  14.     if Student.count != 1:
  15.         print('测试失败!')
  16.     else:
  17.         lisa = Student('Bart')
  18.         if Student.count != 2:
  19.             print('测试失败!')
  20.         else:
  21.             print('Students:', Student.count)
  22.             print('测试通过!')
  23.  
  24. # your code goes here
Success #stdin #stdout 0.1s 14104KB
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stdin
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Standard input is empty
stdout
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Students: 2
测试通过!
https://ideone.com/NqS0vi
language:
Python 3 (python  3.12)
created:
9 hours ago
visibility:
public

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