file">
                        <input type="file" class="custom-file-input" id="customFile6" accept=".pem,.crt,.cer" required @change="handleFile('pem_cert', event)">
                        <label class="custom-file-label" for="customFile6">点击选择文件</label>
                    </div>
                </div>
            </div>
            <div class="form-group" v-show="input.from=='DER'">
                <label class="form-label" for="customFileLabel">DER 证书文件 <span class="text-dang