Merge branch 'master' of gitee.com:willfree/min-dev-java

src/main/java/component/TTL.java

@@ -19,6 +19,9 @@ public class TTL implements IEncodingAble {
       */
     private long ttl;
 
+    public TTL(){
+    }
+
     public TTL(Block block){
         buildTTLByBlock(block);
     }