fix: 处理null问题

buhuazhen

2026-06-01 facbfd2b1a0eb1ea971b699def8c85a43c5fa7fa

 src/main/java/com/ruoyi/framework/config/KaptchaTextCreator.java

@@ -62,13 +62,6 @@
                suChinese.append(CNUMBERS[x]);

            }

        }

        else

        {

            result = x + y;

            suChinese.append(CNUMBERS[x]);

            suChinese.append("+");

            suChinese.append(CNUMBERS[y]);

        }

        suChinese.append("=?@" + result);

        return suChinese.toString();

    }