modify api_train_v2

demo/mnist/api_train_v2.py

@@ -16,8 +16,8 @@ def main():
     paddle.init(use_gpu=False, trainer_count=1)
 
     # define network topology
-    images = paddle.layer.data(name='pixel', size=784)
-    label = paddle.layer.data(name='label', size=10)
+    images = paddle.layer.data(name='pixel', type=dense_vector(784))
+    label = paddle.layer.data(name='label', type=integer_value(10))
     hidden1 = paddle.layer.fc(input=images, size=200)
     hidden2 = paddle.layer.fc(input=hidden1, size=200)
     inference = paddle.layer.fc(input=hidden2,