??????
?????,???????????????????????????????????,??????????????,??????????????????????
??2015??,???? “??,?????????”,???????????????
?:????
???????:???
???:?????????? ???????????????????:????
??:??????????????????
???:??20???????????????
?????????????????????
??gif-?????????????1-1??
???:??????????????????
GIF-????!?????????????
???:??????????????????
????????????????3???
?????????????????????
2017????????????10?????
??2?????????0.4%
???:?????????????????
??:????“???”?????????
????????????????????
???????:????48???????
???:??5???????????????
4?1?!??????????????????!
?????????????????????
??2?????????0.4%
????“??????”?????????????
?????!??1????????9.9????
????????????????high?
?????????????:???????
??GIF-?????????????????
????????«??»:??????????