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8()Analyzethefollowingcode:classA:definit(self,s):self.s=sdefprint(self):print(self.s)a=A()a.print()

题型：单选题

选项

A. The program has an error because class A does not have a constructor.

B. The program has an error because s is not defined in print(s).

C. The program runs fine and prints nothing.

D. The program has an error because the constructor is invoked without an argument.

正确答案：D

8()Analyzethefollowingcode:classA:def__init__(self,s):self.s=sdefprint(self):print(self.s)a=A()a.print()