图片转base64
2017-09-12 本文已影响0人
NarCraven
function getBase64Image(img) {
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0, img.width, img.height);
var ext = img.src.substring(img.src.lastIndexOf(".") + 1).toLowerCase();
var dataURL = canvas.toDataURL("image/" + ext);
return dataURL;
}
//图片转base64
var img = $(".bill img").prop("src");
var image = new Image();
image.crossOrigin = '';
image.src = img;
var small_base64 = getBase64Image(image);