后端：修改复制试卷bug

cqb-paper/src/main/java/com/qmth/cqb/paper/service/ImportPaperService.java

@@ -1544,19 +1544,10 @@ public class ImportPaperService {
     	newPaper.setLastModifyName(user.getName());
     	newPaper.setOrgId(user.getRootOrgId().toString());
     	newPaper.setCourse(course);
+    	newPaper.setCourseNo(course.getCode());
     	newPaper.setId(null);
 		return paperRepo.save(newPaper);
 	}
-
-	public static void main(String[] args){
-		String s1 = null;
-		String s2 = " ";
-		boolean b = false;
-		if(s2 == null){
-			b = true;
-		}
-		System.out.println(b);
-    }
 	
 	public static boolean isInteger(String str) { 
 		Pattern pattern = Pattern.compile("^[-\\+]?[\\d]*$");