update README

RuoYi

2023-12-13 779a2e816c9fa2b37d9e6a313256c9ba54649da2

 src/main/java/com/ruoyi/common/utils/file/FileUtils.java

@@ -116,8 +116,7 @@
        // 路径为文件且不为空则进行删除

        if (file.isFile() && file.exists())

        {

            file.delete();

            flag = true;

            flag = file.delete();

        }

        return flag;

    }