Element-upload使用

<el-form-item label="附件上传：" label-width="110px">            <el-upload              ref="noticeUpload"              class="upload-demo"              action="#"              :before-upload="beforeAvatarUpload"              :on-change="handleChange"              :file-list="fileList"              list-type              :http-request="uploadFile"              :limit="1"            >              <div slot="tip" class="el-upload__tip">                (只能上传1个附件，仅支持PDF文档)              </div>              <el-button size="small" type="primary">点击上传</el-button>            </el-upload>          </el-form-item>

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