优化代码逻辑

src/main/java/com/aizuda/boot/modules/flw/flow/FlowForm.java

@@ -19,7 +19,10 @@ public class FlowForm {
     }
 
     public static Map<String, Object> flowArgs(Map<String, Object> args) {
-        Map<String, Object> formArgs = FlowDataTransfer.get("flowFormArgs") == null ? new HashMap<>():FlowDataTransfer.get("flowFormArgs");
+        Map<String, Object> formArgs = FlowDataTransfer.get("flowFormArgs");
+        if (null == formArgs) {
+            formArgs = new HashMap<>();
+        }
         if (MapUtils.isNotEmpty(args)) {
             formArgs.putAll(args);
         }