JS 打印指定html内容（带样式,不弹框）

html：

<div id="printdiv">

    <!-- 内容 -->

</div>
<iframe src="window.location.href" id="printIframe"></iframe>

JS/TS

function PrintHtml() {
    var content = document.getElementById("yourId").innerHTML; // 替换"yourId"为你要打印的元素的id
    var printIframe = document.getElementById('yourIframe') as HTMLIFrameElement; // 替换"yourIframe"为你定义的iframe

    const printIframeWindow = printIframe.contentWindow
    printIframeWindow.document.title = 'test print'    
    printIframeWindow.document.body.innerHTML = content;
    var iframeStyle = printIframeWindow.document.createElement('style');
    iframeStyle.innerHTML = "body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p,  th, td {\
        margin: 0;\
        padding: 0;\
        font-size: 12px;\
        outline: none;\
    }\
    ";
    printIframeWindow.document.head.appendChild(iframeStyle);    
    printIframeWindow.addEventListener('beforeprint', () => {
      console.log("print begin")
    })
    printIframeWindow.addEventListener('afterprint', () => {
        console.log("print end")
    })
    setTimeout(() => {
      printIframeWindow.focus()
      printIframeWindow.print()
    })


    const removeOldIframe = () => {
        const oldPrintIframe = document.getElementById('yourIframe')
        oldPrintIframe && oldPrintIframe.remove && oldPrintIframe.remove()
    }

}