bug修改

@@ -103,7 +103,11 @@ public class WorkSystemSupport {
             mobileBuilder.append(str).append(",");
         }
         String sms = "您处理过的工单：" + workid + " 已经处理完毕，处理结果：" + result;
-        alarmMsgService.sendSms("work_system", sms, mobileBuilder.toString().substring(0,mobileBuilder.toString().length()-1));
+        String mobiles="";
+        if(mobileBuilder.toString().length()>0){
+            mobiles= mobileBuilder.toString().substring(0,mobileBuilder.toString().length()-1);
+        }
+        alarmMsgService.sendSms("work_system", sms,mobiles);
         //发送邮件
         addLeader(builder);
         mailService.sendHTMLMail(builder.build());