Supported by the National Natural Science Foundation of China(11201001);the Natural Science Foundation of Anhui Province(1208085QA03,1308085QA03,1408085QA02);Research Teaching Model Curriculum of Anhui University(xjyjkc1407);Graduate Academic Innovation Research Project of Anhui University(yfc100023);the Students Innovative Training Project of Anhui University(201310357004,201410357117,201410357249)