html2Canvas+JsPDF 导出pdf
问题：类似于下面着这种网络图片使用img导出的时候是空白的
/search/src=http%3A%2F%%2Ffeed%2F7e3e6709c93d70cf827fb2fda054500cb8a12bc9.jpeg%40f_auto%3Ftoken%3Dd97d3f0fd06e680e592584f8c7a24ac8&refer=http%3A%2F%&app=&size=f360,240&n=0&g=0n&q=75&fmt=auto?sec=1690045200&t=e1a88c44b1b9907677400a079766e0bf
解决：将网络图片转成base64
<img :src="aaa" style="width:200px" alt="">转base64let res = await this.getBase64Image('/search/src=http%3A%2F%%2Ffeed%2F7e3e6709c93d70cf827fb2fda054500cb8a12bc9.jpeg%40f_auto%3Ftoken%3Dd97d3f0fd06e680e592584f8c7a24ac8&refer=http%3A%2F%&app=&size=f360,240&n=0&g=0n&q=75&fmt=auto?sec=1690045200&t=e1a88c44b1b9907677400a079766e0bf')this.aaa = resgetBase64Image(src) {return new Promise(resolve => {const img = new Image()img.crossOrigin = ''img.src = srcimg.onload = function() {const canvas = document.createElement('canvas')canvas.width = img.widthcanvas.height = img.heightconst ctx = canvas.getContext('2d')ctx && ctx.drawImage(img, 0, 0, img.width, img.height)const ext = img.src.substring(img.src.lastIndexOf('.') + 1).toLowerCase()const dataURL = canvas.toDataURL('image/' + ext)resolve(dataURL)}})},
导出
