#!/usr/bin/python

   class Vector:
       def init(self,a,b):
       self.a = a
       self.b = b
       def init(self):
       return 'Vector (%d,%d)' % (self.a,self.b)

    def add(self,other):
     return Vector(self.a + other.a, self.b+other.b)

v1 = Vector(1,2)
v2 = Vector(3,4)
print(v1+v2)

运行结果：

root@kali:~/Desktop# python t2.py
Traceback (most recent call last):
File "t2.py", line 13, in
v1 = Vector(1,2)
TypeError:  init () takes 1 positional argument but 3 were given

大家帮看看问题在哪儿