vue，实现打印功能

代码样例

html

    <section id="myPrint" style="display: none">
      <div class="print" ref="myPrint">
        <h1>交易单据</h1>
        <p>订单号：{{printData.orderNo}}</p>
        <p>买家：{{printData.buyerName}} / {{printData.buyerPhone}}</p>
        <p>脚环数量：{{printData.ankleNum}}</p>
        <p>加工数量：{{printData.processNum}}</p>
        <p>脚环费用：{{printData.anklePrice}} 元</p>
        <p>加工费用：{{printData.processPrice}} 元</p>
        <p>总价：{{printData.realPrice}} 元</p>
        <p>下单时间：{{printData.createTime}}</p>
        <p>操作员：{{user.realName}}</p>
        <br>
        <div class="no-print">不要打印我</div>
      </div>
    </section>

方法样例

    posPrint (elementId) {
      setTimeout(() => {
        const el = document.getElementById(elementId)
        const iframe = document.createElement('iframe')
        let doc = null
        iframe.setAttribute('style', 'position:absolute;width:0px;height:0px;left:-10px;top:-10px;')
        document.body.appendChild(iframe)
        doc = iframe.contentWindow.document
        // 打印的专有CSS样式，根据实际修改
        doc.write('<style> .no-print { display: none} .print h1 { margin: 0px;text-align: center} .print p { margin: 0px;}</style>')
        doc.write(el.innerHTML)
        doc.close()
        // 获取iframe的焦点，从iframe开始打印
        iframe.contentWindow.focus()
        iframe.contentWindow.print()
        if (navigator.userAgent.indexOf('MSIE') > 0) {
          document.body.removeChild(iframe)
        }
      }, 100)
    }

使用传入dom的Id

this.posPrint('myPrint')