QCloudCOSSMHUploadObjectRequest *uploadReq = [QCloudCOSSMHUploadObjectRequest new];
// confirmKey 若设置则视为继续上传，否则为新上传任务。
// 从 getConfirmKey 回调获取。
uploadReq.confirmKey = @"confirmKey";
// 设置要上传的目录所在 libraryId；
uploadReq.libraryId = @"libraryId";
// 设置要上传的目录所在 libraryId；
uploadReq.spaceId = @"spaceId";
// 上传的文件 URL 或者 data
uploadReq.body = @"uploadBody";
uploadReq.uploadPath = @"目标路径";
// confirmKey 回调
uploadReq.getConfirmKey = ^(NSString *_Nullable confirmKey) {
    // confirmKey 在进行断点续传时需要，业务需要保存
};
// 上传进度回调
[uploadReq setSendProcessBlock:^(int64_t bytesSent, int64_t totalBytesSent, int64_t totalBytesExpectedToSend) {

}];
// 上传结果回调
[uploadReq setFinishBlock:^(QCloudSMHContentInfo *result, NSError *error) {

}];
// 发起上传
[[QCloudSMHService defaultSMHService] uploadObject:uploadReq];

[uploadReq cancel];

[uploadReq abort:^(id outputObject, NSError *error) {
    // 结束回调
}];