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9年前关闭。
我写了以下webservice，当找不到项目时，我只希望该webservice方法返回
<error> No Project Found </error>
而没有其他任何东西。
Project GetProject(int Project_id)
{
Project dmo = new Project();
ProjectDAO dao = new ProjectDAO();
dmo = dao.GetProject(Project_id);
return dmo;
}