el-upload 控件文档

/#/zh-CN/component/upload

accept属性

示例

<el-uploadclass="avatar-uploader"action="https://xxx/upload"accept=".jpg,.jpeg,.png,.gif":show-file-list="false":on-success="handleAvatarSuccess":before-upload="beforeAvatarUpload"><img v-if="imageUrl" :src="imageUrl" class="avatar"><i v-else class="el-icon-plus avatar-uploader-icon"></i></el-upload>

accept=".jpg,.jpeg,.png,.gif"限制文件类型为.jpg,.jpeg,.png,.gif

效果如下：