BrowserJS 是否能删除文件夹

obs 有支持开发者支持 文件夹重命名的api 方案吗，还是只能一个一个去复制粘贴

https://support.huaweicloud.com/sdk-java-devg-obs/obs_21_0901.html通过临时URL访问OBS(Java SDK)调用该接口生成url，浏览器直接访问下载，总是报错：The request signature we calculated does not match the signature you provided. Check your key and signing method.

 之前用的阿里云，实现代码如下： DefaultProfile profile = DefaultProfile.getProfile( OssConfiguration.region, OssConfiguration.accessKey, OssConfiguration.secretKey); IAcsClient client = new DefaultAcsClient(profile);  AssumeRoleRequest request = new AssumeRoleRequest(); request.setDurationSeconds(OssConfiguration.expire); request.setRoleArn(OssConfiguration.roleArn); request.setRoleSessionName(OssConfiguration.roleSessionName);  AssumeRoleResponse.Credentials response = client.getAcsResponse(request).getCredentials(); 切换到华为云，代码要怎么实现呢， 使用到哪些类？ 

使用的是最新版本的、、、、、、、、、、

Execution failed for task ':driver:compileDebugJavaWithJavac'. > Could not resolve all files for configuration ':driver:debugCompileClasspath'.    > Failed to transform jackson-core-2.15.2.jar (com.fasterxml.jackson.core:jackson-core:2.15.2) to match attributes {artifactType=android-classes-jar, org.gradle.category=library, org.gradle.dependency.bundling=external, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-api}.       > Execution failed for JetifyTransform: C:\Users\Administrator\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.15.2\a6fe1836469a69b3ff66037c324d75fc66ef137c\jackson-core-2.15.2.jar.          > Failed to transform 'C:\Users\Administrator\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.15.2\a6fe1836469a69b3ff66037c324d75fc66ef137c\jackson-core-2.15.2.jar' using Jetifier. Reason: IllegalArgumentException, message: Unsupported class file major version 61. (Run with --stacktrace for more details.)            Suggestions:             - Check out existing issues at https://issuetracker.google.com/issues?q=componentid:460323&s=modified_time:desc, it's possible that this issue has already been filed there.             - If this issue has not been filed, please report it at https://issuetracker.google.com/issues/new?component=460323 (run with --stacktrace and provide a stack trace if possible). 

OBS SDK中，C语言的SDK为啥某些函数不支持 https://bbs.huaweicloud.com/forum/thread-0266152380110309019-1-1.html  OBS有那么多不同语言的SDK，哪种上传/下载速度最快 https://bbs.huaweicloud.com/forum/thread-0249152379563688026-1-1.html  OBS怎么给桶分配权限 https://bbs.huaweicloud.com/forum/thread-0266152379283948018-1-1.html  OBS中的并行文件系统是什么原理？比起传统文件系统改进在哪里 https://bbs.huaweicloud.com/forum/thread-0297152378512172029-1-1.html  OBS中的Metadata 和 Data 有什么区别 https://bbs.huaweicloud.com/forum/thread-0297152378114343028-1-1.html  OBS上传图片（假设图片比较大，有15MB左右）后，问大概多久能生成缩略图 https://bbs.huaweicloud.com/forum/thread-0297152349334607020-1-1.html  在手机上通过Java OBS SDK上传文件，推荐开几个并发？为什么？ https://bbs.huaweicloud.com/forum/thread-0266152349263905013-1-1.html  OBS JavaScript的SDK在哪里下载？ https://bbs.huaweicloud.com/forum/thread-0297152349219764019-1-1.html  前端使用browserjs实现断点续传，上传过程中关闭浏览器，再次打开浏览器进入对应上传页面，无法再续传文件 https://bbs.huaweicloud.com/forum/thread-0220152157766309011-1-1.html  OBS能否给桶设置允许上传文件的类型 https://bbs.huaweicloud.com/forum/thread-0220151925139468006-1-1.html  OBS 能否对上传的图片自动生成加水印的图片？代码怎么写 https://bbs.huaweicloud.com/forum/thread-0269151292821745010-1-1.html  OBS官网案例-大数据分析这个场景里，OBS用在哪个地方？图上没有标出来 https://bbs.huaweicloud.com/forum/thread-02109151292749308013-1-1.html   OBS支持上传哪些类型的文件 https://bbs.huaweicloud.com/forum/thread-02120151292618183012-1-1.html  OBS怎么查看哪些是用户上传了一半然后中断的文件，并定时清理这些无效文件 https://bbs.huaweicloud.com/forum/thread-0272151292413155011-1-1.html   OBS上传一个文件，默认会生成几个副本来保证安全？ https://bbs.huaweicloud.com/forum/thread-0269151292358910008-1-1.html   Android studio 采用流式方法下载程序崩溃（Java） https://bbs.huaweicloud.com/forum/thread-02120151241432258011-1-1.html  华为云obs怎么实现取消下载 https://bbs.huaweicloud.com/forum/thread-0282150688236887024-1-1.html  JavaSDK上传文本数据到OBS问题 https://bbs.huaweicloud.com/forum/thread-02127150604424860031-1-1.html   华为云OBS不支持自己的鸿蒙NextOS的ArkTs语言版本 https://bbs.huaweicloud.com/forum/thread-0226150461518739031-1-1.html 

在我看来，不就是Restful http 协议吗，为啥C语言不支持，而其他语言都能支持？

OBS怎么给桶分配权限

OBS中的并行文件系统是什么原理？比起传统文件系统改进在哪里

OBS中的Metadata 和 Data 有什么区别

OBS上传图片（假设图片比较大，有15MB左右）后，问大概多久能生成缩略图？如果在这之前调用缩略图的地址访问缩略图，会怎样？

在手机上通过Java OBS SDK上传文件，推荐开几个并发？为什么？

OBS JavaScript的SDK在哪里下载？