我的代码是：

A = np.concatenate((folder[0],folder[1],folder[2],folder[3],folder[4],folder[5],folder[6],folder[7],folder[8],folder[9],folder[10],folder[11]))

label = np.ones(4750,dtype = int)
label[0:263] = 0
label[263:653] = 1
label[653:940] = 2
label[940:1551] = 3
label[1551:1772] = 4
label[1772:2247] = 5
label[2247:2901] = 6
label[2901:3122] = 7
label[3122:3638] = 8
label[3638:3869] = 9
label[3869:4365] = 10
label[4365:4750] = 11

data,Label = shuffle(A,label,random_state=0)
train_data = [data,Label]
X,Y = [train_data[0],train_data[1]]

X_train,X_test,Y_train,Y_test = train_test_split(X,Y,test_size=0.2,random_state=1)

x_test,x_val,y_test,y_val = train_test_split(X_test,Y_test,random_state=1)



print(X_train.shape)

输出：（3800，268203）

print(f'train size: {X_train.shape},val size: {x_val.shape},test size: {X_test.shape}')

输出：火车尺寸：（3800，268203），val尺寸：（760，299，299，3），测试尺寸：（950，268203）

X_train = X_train.reshape((X_train.shape[0],299,3))

x_val = x_val.reshape((x_val.shape[0],3))

x_test = x_test.reshape((x_test.shape[0],3))

当我使用np.zero而不是X_train.reshape时，它正在工作，但是在构建模型后出现错误。 现在我得到的错误是：

   ValueError                                Traceback (most recent call last)
<ipython-input-79-bbe4db2d4820> in <module>
      3 X_val = X_val.reshape((X_val.shape[0],3))
      4 
----> 5 X_test = X_test.reshape((x_test.shape[0],3))

ValueError: cannot reshape array of size 254792850 into shape (760,3)

请帮助我解决这个问题。