前端局部列印

先将需要列印的内容添加id=print

const el =documnet.getElementById('printRoute').innerHTML;

const iframe =document.createElement('IFRAME');

let doc=null;

document.body.appendChild(iframe);

doc =iframe.contentWindow.document;

doc.write(el);

doc.close();

iframe.contentWindow.focus();

iframe.contentWindow.print();

document.body.removeChild(iframe);