<html>
<body>
<input type="week" id="myWeek" value="1995-W35">
<p>点击按钮获取 week 字段的年和周。</p>
<button onclick="myFunction()">点我</button>
<p id="demo"></p>
<script>
function myFunction() {
var x = document.getElementById("myWeek").value;
document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>