针对血压修改给症状添加标准词部分

bigdata-web/src/main/java/org/diagbot/bigdata/work/ParamsDataProxy.java

@@ -354,7 +354,7 @@ public class ParamsDataProxy {
         for (String standWord : newStandWord.split(",")) {
             if (!"".equals(standWord) || standWord.length() > 0) {
                 if (standWord.contains("<") || standWord.contains("<=") || standWord.contains("小于")) {
-                    smallerStandWord = "," + standWord;
+                    smallerStandWord += "," + standWord;
                 } else {
                     addStandWords += "," + standWord;
                     flag = false;