option>
                    </select>
                </div>
                <div class="row pt-1 pb-1 mb-3">
                    <div class="col-6">
                        <button class="btn btn-dim btn-outline-secondary btn-block card-link" @click="key_encrypt">
                            加密
                        </button>
                    </div>
                    <div class="col-6">
                        <button class="btn btn-dim btn-outline-secondary btn-block card-link" @click