ckplayer.py: fix when got data without a ckplayer->info and clean the code
ckplayer.py: fix when got data without a ckplayer->info and clean the code

xyuanmu/you-get,qzane/you-get,zmwangx/you-get,cnbeining/you-get,qzane/you-get,cnbeining/you-get,zmwangx/you-get,xyuanmu/you-get