function act_addSampleCoefficient($set)
 {
     $list = SampleCoefficientModel::addSampleCoefficient($set);
     if ($list) {
         return $list;
     } else {
         self::$errCode = SampleCoefficientModel::$errCode;
         self::$errMsg = SampleCoefficientModel::$errMsg;
         return false;
     }
 }