关于javascript:使用htm2canvasjsPDF将指定区域导出成PDF

最近因我的项目需要，须要打印弹窗表单内容，所以在网上找了找发现了许多优质的帖子，本文章代码根本参考该帖内容，写此文章只为坚固加深印象，文末是原贴链接

const pdfDownload = ()=>{    let target = document.getElementsByClassName('ant-layout')[0] //打印区域      target.style.background = '#FFF' //打印内容务必放弃背景色为红色    html2canvas(target, {        dpi: 172,        useCORS: true    }).then((canvas)=>{        let cW = canvas.width,            cH = canvas.height,            pH = cW / 592.28 * 841.89,            position = 0,            iW = 595.28,            iH = 592.28 / cW * cH,            pData = canvas.toDataURL('image/jpeg', 1.0),            { jsPDF } = jspdf            pdf = new jsPDF('', 'pt', 'a4')                    if(cH < pH){            pdf.addImage(pData, 'JPEG', 0, 0, iW, iH)        }        else{            while(cH > 0){                pdf.addImage(pData, 'JPEG', 0, position, iW, iH)                cH -=pH                position -= 841.89                if(cH > 0){                    pdf.addImage()                }            }        }                pdf.save('form.pdf')    })    }

相干链接
https://segmentfault.com/a/11...