...

examcloud-core-basic-api-provider/src/main/java/cn/com/qmth/examcloud/core/basic/api/controller/StudentController.java

@@ -499,10 +499,6 @@ public class StudentController extends ControllerSupport {
 			validateRootOrgIsolation(rootOrgId);
 		}
 
-		if (StringUtils.isBlank(studentCode)) {
-			throw new StatusException("B-160002", "studentCode is blank");
-		}
-
 		List<Long> studentIdList = studentService.unbindStudentCode(rootOrgId, studentCode,
 				identityNumber);