import html2Canvas from "html2canvas";
downloadIamge() {
let that = this;
html2Canvas(document.getElementById("export_content"), {
useCORS:true,//解决canvas跨域
allowTaint:false
}).then(function(canvas) {
let contentWidth = canvas.width;
let contentHeight = canvas.height;
let pageHeight = (contentWidth / 592.28) * 841.89;
let leftHeight = contentHeight;
let position = 0;
let imgWidth = 595.28;
let imgHeight = (592.28 / contentWidth) * contentHeight;
let pageData = canvas.toDataURL("image/jpeg", 1.0);
var a = document.createElement('a')
var event = new MouseEvent('click')
a.download = 'xx分析报告'
a.href = pageData
a.dispatchEvent(event)
});
}
