各位老师，初学者，找不到问题原因，wincc 项目函数总是

#pragma option(mbcs)

float PanDing_M46()

{

float maxv,endv,yjv;

maxv = GetTagFloat("maxvalue"); //Return-Type: float 

endv = GetTagFloat("endvalue"); //Return-Type: float 

yjv = GetTagFloat("压降2"); //Return-Type: float 

if(maxv>=GetTagFloat("设定压力")-0.5);

   {

    if(yjv<=GetTagFloat("最大压降"));

       SetTagChar("结论",GetTagChar("hg")); //Return-Type: BOOL // WINCC:TAGNAME_SECTION_START

    else

     {

      SetTagChar("结论",GetTagChar("bhg")); //Return-Type: BOOL // WINCC:TAGNAME_SECTION_START

      SetTagDateTime("提示时间",GetTagDateTime("xtsj")); //Return-Type: BOOL 

      SetTagChar("提示信息",GetTagChar("yjd")); //Return-Type: BOOL // WINCC:TAGNAME_SECTION_START

      }

     }

else

   {

   SetTagChar("结论",GetTagChar("bhg")); //Return-Type: BOOL // WINCC:TAGNAME_SECTION_START

   SetTagDateTime("提示时间",GetTagDateTime("xtsj")); //Return-Type: BOOL 

   SetTagChar("提示信息",GetTagChar("ylx")); //Return-Type: BOOL // WINCC:TAGNAME_SECTION_START

   }

return 0; //Return-Type: BOOL

}