Pai mai li lun yu ying yong : Piao ju zhi li lun yu ying yong/ Tong ji xue=: Li lun yu ying yong/. Ⅰ. Tong ji xue=: Li lun yu ying yong/. Ⅱ. Gai lv lun ji qi ying yong = Xing wei gai bian zhi li lun yu ying yong/ Kuai ji xue yuan li yu ying yong/ Xue xi ping jia de li lun yu ying yong/ Android kai fa yu ying yong = Yun ji suan yu yun ying yong /