我在np.random.seed（2）中收到“ IndentationError：预期为缩进块”。如何解决这个问题？

Question

import numpy as np
def initialize_parameters(n_x, n_h, n_y):

np.random.seed(2) # we set up a seed so that our output matches ours although the initialization is random.

W1 = np.random.randn(n_h, n_x) * 0.01 #weight matrix of shape (n_h, n_x)
b1 = np.zeros(shape=(n_h, 1))  #bias vector of shape (n_h, 1)
W2 = np.random.randn(n_y, n_h) * 0.01   #weight matrix of shape (n_y, n_h)
b2 = np.zeros(shape=(n_y, 1))  #bias vector of shape (n_y, 1)

#store parameters into a dictionary    
parameters = {"W1": W1,
                  "b1": b1,
                  "W2": W2,
                  "b2": b2}

return parameters

#Function to define the size of the layer
def layer_sizes(X, Y):
    n_x = X.shape[0] # size of input layer
    n_h = 6# size of hidden layer
    n_y = Y.shape[0] # size of output layer
    return (n_x, n_h, n_y)

但是出现此错误：文件“”，第4行np.random.seed（2）＃尽管初始化是随机的，但我们设置了一个种子以使我们的输出与我们的种子匹配。^IndentationError：预期为缩进的块

Answer 1

所有来自：

def initialize_parameters(n_x, n_h, n_y):

到

return parameters

在上面的示例中，需要缩进四个空格。