增加配置项开关控制dn反序

src/test/java/sample/Shanghairenhang.java

@@ -91,5 +91,12 @@ public class Shanghairenhang {
         byte[] bytes = api.SYD_NakedSign(orgData2k, pcDnEN);
         System.out.println(Util.bytes2HexString(bytes));
     }
+    @Test
+    public void aboutCert(){
+        //System.setProperty("com.sunyard.sydapi4j.debug", "true");
+        SydApiBuilder builder = new SydApiBuilder().setIp("192.168.0.200");
+        SydApi4j api = (SydApi4j) builder.build();
+
+    }
 
 }