html2canvas 用来画图太方便了~
html部分
{{ curTrainingName }}
js部分
html2canvas(document.querySelector("#capture")).then(canvas => {
// 下载
let base64Img = canvas.toDataURL('image/png')
let a = document.createElement('a')
a.href = base64Img
a.download = this.qrCodeName
a.click()
//销毁元素
a.remove()
});