Created by: luotao1

fix #11163 (closed)

• The reason is that batch_acc != None is None, so use batch_acc directly.
• fix typo of no_test meaning, and its action. The original meaning and action are both reversed. After fixing, the default run.sh will test the testset during the training.
• Add , at the end of line 232, thus, line 232 and line 237 will be printed in the same line.