如何在Safari/Chrome中从javascript打印IFrame

var iframe = document.getElementById('your-iframe-id');
var iframeContent = iframe.contentWindow.document;

var printWindow = window.open('', '_blank');

printWindow.document.body.innerHTML = iframeContent.body.innerHTML;

printWindow.print();

function printIFrame(iframeId) {
  var iframe = document.getElementById(iframeId);
  var iframeContent = iframe.contentWindow.document;
  var printWindow = window.open('', '_blank');
  printWindow.document.body.innerHTML = iframeContent.body.innerHTML;
  printWindow.print();
}

// 调用printIFrame函数，传入IFrame的ID作为参数
printIFrame('your-iframe-id');