window.onload = function() {
let uri = "http://www.baidu.com";
let id = "new_a"
createSuperLabel(uri, id)
}
function createSuperLabel(url, id) {
let a = document.createElement("a");
a.setAttribute("href", url);
a.setAttribute("target", "_blank");
a.setAttribute("id", id);
// 防止反复添加
if (!document.getElementById(id)) {
document.body.appendChild(a);
}
a.click();
}