extra的var 改成vars

smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/design/form/ModelFormHelper.java

@@ -327,7 +327,7 @@ public class ModelFormHelper {
         }
         //构建变量
         SwMap mapVar = new SwMap();
-        map.put("var", mapVar);
+        map.put("vars", mapVar);
         List<String> vars = (List<String>) option.get("vars");
         for (String var : vars) {
             mapVar.put(var, SwVariableFactory.getInstance().calcVar(var, params, us));