line-secondary btn-block card-link mb-3" @click="generate">
                    生成
                </button>
                <div class="d-flex flex-wrap">
                    <div class="form-group flex-fill mr-2">
                        <label class="form-label">RSA公钥 <em class="icon ni ni-download" title="下载保存" v-show="mutipart_from.public_key" @click="download('public_key')"></em></label>
                        <div class="form-control-wrap">
                            <textare