什么也不填写的话，block也进行正则匹配

src/main/java/controller/EthMevController.java

@@ -132,7 +132,7 @@ public class EthMevController extends Controller {
         if (StrKit.isBlank(getPara("block"))
                 && StrKit.isBlank(getPara("hash"))
                 && StrKit.isBlank(getPara("dataVague"))) {
-            sql = "select * from t_ethereum_mev_v1 order by block desc limit ?,?";
+            sql = "select * from t_ethereum_mev_v1 where block regexp '[-0-9]' order by block desc limit ?,?";
             ethMevList = EthMev.dao.find(sql, limit1, limit2);
         } else if (StrKit.isBlank(getPara("block")) && StrKit.isBlank(getPara("hash"))) {
             sql = "select * from t_ethereum_mev_v1 where block regexp '[-0-9]' and data like ? order by block desc limit ?,?";