<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Typ
不想用canvas转 <input type="file" id="file" accept="image/*" onchange="changeImg()"/> <script> function blobToDataURL(blob,cb) { let reader = new FileReader(); reader.onload = function (evt) { var base64 = e