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编辑您的代码：
<!DOCTYPE html> <html> <body> <h3>演示如何访问 Input Week 字段</h3> <input type="week" id="myWeek" value="2014-W15"> <p>点击按钮来获得 week 字段的周和年。</p> <button onclick="myFunction()">试一下</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myWeek").value; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
查看结果: