一、vue实现附件下载，使用a链接

<a  class="btn flex_center"  target="_blank"
:href="localImgSrc(goodsDetail.attachment)" 
:download="localImgSrc(goodsDetail.attachment)" >
	立即下载
</a>

二、 获取到接口的图片，设置宽度100%样式

//获取到接口的data后
var richtext = that.goodsDetail.content;
const regex = new RegExp('<img', 'gi');
var richtext2 = richtext.replace(regex, `<img style="max-width: 100%;display:block;"`);
that.goodsDetail.content = richtext2;