因为重复命名的导致索引错误：‘int‘ object is not subscriptable

‘int’ object is not subscriptable

b = numpy.zeros(2)
b[0] = 123
b[1] = 456

a = int(b[0]-30)
b = int(b[0]+150)
c = int(b[1]-30)
d = int(b[1]+150)