下载图片

function download(src, name) {
  var $a = document.createElement("a");
  $a.setAttribute("href", src);
  $a.setAttribute("download", name);
  var evObj = document.createEvent("MouseEvents");
  evObj.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0, false, false, true, false, 0, null);
  $a.dispatchEvent(evObj);
}
document.querySelectorAll(".wrap-card:nth-child(15) img.icon").forEach((item, i) => {
  if (i >= 120 && i < 130) {
    console.log(item.src);
    download(item.src, item.src.split("/").slice(-1)[0]);
  }
});
document.querySelectorAll(".chart img").forEach((item, i) => {
  console.log(i);
  if (i >= 30 && i < 40) {
    console.log(item.src);
    download(item.src, item.src.split("/").slice(-1)[0]);
  }
});