问带有Javascript或JQuery的自定义下载名称

EN

function downloadIt() {
  var name = document.getElementsByName("Name")[0].value;
  if (name && name !=='') {
    var link = document.createElement('a');
    link.download = name;
    link.href ="file.png";  
    link.click();
  }
}

Name:<input type="text" name="Name" id="myName" value="Custom Name">
<br>
<button type="button" onclick="download()">Download</button>

function download() {
  var a = document.createElement("a");
  a.href = "myfile.png";
  a.download = document.getElementById("myName").value;
  document.body.appendChild(a);
  a.click();
  document.body.removeChild(a);
}