完善判断

src/main/java/com/xhkjedu/service/EPaperVerifyService.java

         Integer studentid = psParams.getStudentid();
         Integer newstudentid = psParams.getNewstudentid();
         Integer samed = 2; //是否和以前一致1一致2不一致
-        if(N_Utils.isTrueInteger(newstudentid) && studentid.equals(newstudentid)){
+        if(!N_Utils.isTrueInteger(newstudentid) || studentid.equals(newstudentid)){
             samed = 1;
             newstudentid = studentid;
         }