clean code a little bit.
clean code a little bit.

putcn/Paddle,baidu/Paddle,yu239/Paddle,pengli09/Paddle,chengduoZH/Paddle,yu239/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,lcy-seso/Paddle,gangliao/Paddle,jacquesqiao/Paddle,jacquesqiao/Paddle,Canpio/Paddle,Canpio/Paddle,wen-bo-yang/Paddle,lispc/Paddle,chengduoZH/Paddle,gangliao/Paddle,Canpio/Paddle,Canpio/Paddle,hedaoyuan/Paddle,hedaoyuan/Paddle,luotao1/Paddle,livc/Paddle,QiJune/Paddle,wen-bo-yang/Paddle,wen-bo-yang/Paddle,livc/Paddle,pkuyym/Paddle,wen-bo-yang/Paddle,lcy-seso/Paddle,emailweixu/Paddle,emailweixu/Paddle,QiJune/Paddle,wen-bo-yang/Paddle,lispc/Paddle,PaddlePaddle/Paddle,pengli09/Paddle,tensor-tang/Paddle,baidu/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,pengli09/Paddle,lispc/Paddle,pkuyym/Paddle,reyoung/Paddle,emailweixu/Paddle,reyoung/Paddle,luotao1/Paddle,pkuyym/Paddle,baidu/Paddle,PaddlePaddle/Paddle,lcy-seso/Paddle,lcy-seso/Paddle,pengli09/Paddle,pengli09/Paddle,pengli09/Paddle,yu239/Paddle,putcn/Paddle,PaddlePaddle/Paddle,yu239/Paddle,lcy-seso/Paddle,gangliao/Paddle,cxysteven/Paddle,lispc/Paddle,cxysteven/Paddle,hedaoyuan/Paddle,lispc/Paddle,yu239/Paddle,Canpio/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,gangliao/Paddle,tensor-tang/Paddle,QiJune/Paddle,cxysteven/Paddle,pkuyym/Paddle,pengli09/Paddle,hedaoyuan/Paddle,putcn/Paddle,cxysteven/Paddle,reyoung/Paddle,gangliao/Paddle,yu239/Paddle,livc/Paddle,lcy-seso/Paddle,tensor-tang/Paddle,hedaoyuan/Paddle,Canpio/Paddle,hedaoyuan/Paddle,hedaoyuan/Paddle,chengduoZH/Paddle,emailweixu/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,emailweixu/Paddle,pengli09/Paddle,chengduoZH/Paddle,livc/Paddle,luotao1/Paddle,reyoung/Paddle,lispc/Paddle,emailweixu/Paddle,emailweixu/Paddle,gangliao/Paddle,jacquesqiao/Paddle,livc/Paddle,luotao1/Paddle,wen-bo-yang/Paddle,wen-bo-yang/Paddle,pkuyym/Paddle,cxysteven/Paddle,putcn/Paddle,cxysteven/Paddle,livc/Paddle,jacquesqiao/Paddle,putcn/Paddle,cxysteven/Paddle,QiJune/Paddle,yu239/Paddle,luotao1/Paddle,tensor-tang/Paddle,hedaoyuan/Paddle,gangliao/Paddle,baidu/Paddle,baidu/Paddle,luotao1/Paddle,Canpio/Paddle,tensor-tang/Paddle,reyoung/Paddle,Canpio/Paddle,pkuyym/Paddle,putcn/Paddle,luotao1/Paddle,livc/Paddle,lispc/Paddle,jacquesqiao/Paddle,lispc/Paddle,yu239/Paddle,reyoung/Paddle