Improve comments and rewrtings some funcs
Improve comments and rewrtings some funcs

Adai0808/douban.fm,shrekuu/douban.fm,everhopingandwaiting/douban.fm,jerrymomo10/douban.fm,jerrymomo10/douban.fm,shrekuu/douban.fm,everhopingandwaiting/douban.fm,Adai0808/douban.fm