C#方法调用写分段函数

Question

想要一个具体的例子

Answer 1

public partial class CartDal { public int GetPageCount(int pageSize) {            int recordCount = this.Dbsession.BooksDal.LoadEntities(c => true).Count();            return Convert.ToInt32((Math.Ceiling((double)recordCount / pageSize)));        }    } public partial class CartDal { public int GetPageCount(int pageSize,index){            return Convert.ToInt32((Math.Ceiling((double)pageSize * index)));        }    }