【无标题】python 传递

x = [1,2,3] # or x = np.array([1,2,3])
def f(x):
    x[0] = 3
f(x)
# x 发生改变
x == [1,2,3] # False


x = [1,2,3]
class c():
    def __init__(self,x):
        self.x = x
c = c(x)
c.x[0] = 22
c.x == x # True