// <summary>
/// 删除符合条件的StudentsModel实体
/// </summary>
/// <param name="predicate"></param>
/// <returns></returns>
public bool DeleteMulitistudentsByCondition(Expression <Func <StudentsModel, bool> > predicate)
{
var result = false;
try
{
result = dal_students.DeleteByCondition(predicate) > 0 ? true : false;
}
catch (Exception ex)
{
throw ex;
}
return(result);
}