Created by: geniusSDNexplorer

64 data_reader = RelevanceReader() 65 66 image = fluid.layers.data(name='image', shape=[3, 224, 224], dtype='float32') 67 sign = fluid.layers.data(name='segment_sign', shape=[1], dtype='str') 68 feed_list = [sign, image] 69 multiprocessing_batch_gen = data_reader.multiprocessing_wrapper( 70 file_names=input_file_names, 71 data_sizes=input_data_sizes, 72 num_workers=5, 73 epochs=1) 74 py_reader = fluid.io.PyReader( 75 feed_list=feed_list, 76 capacity=20, 77 use_double_buffer=True, 78 iterable=True) 79 py_reader.decorate_batch_generator(multiprocessing_batch_gen, places=places)

如以上代码所示，我的reader输出sign和image两个部分，其中sign是string类型，但是layers.data不支持str类型，所以我的feedlist应该写什么呢？