Service
方法：
|方法名|返回值|参数|说明|
|-|-|-|-|
|insert||||
|insertProject|void|Project*||
|insertScore|void|Score*||
|insertCourse|void|Course*||
|insertPaper|void|Paper*||
|insertStudent|void|Student*||
|insertPrize|void|Prize*||
|delete||||
|deleteProjectById|void|int id||
|deleteScoreById|void|int id||
|deleteCourseById|void|int id||
|deletePaperById|void|int id||
|deleteStudentById|void|int id||
|deletePrizeById|void|int id||
|get||||
|getProjectById|Project*|int id||
|getScoreById|Score*|int id||
|getCourseById|Course*|int id||
|getPaperById|Paper*|int id||
|getStudentById|Student*|int id||
|getStudentByName|List*|char *name||
|getPrizeById|Prize*|int id||
|update||||
|updateProjectById|void|Project*||
|updateScoreById|void|Score*||
|updateCourseById|void|Course*||
|updatePaperById|void|Paper*||
|updateStudentById|void|Student*||
|updatePrizeById|void|Prize*||