​x
 
<!DOCTYPE html>
<html>
<body>
​
<p>单击按钮可显示单击按钮的当前点击次数。</p>
​
<button onclick="myFunction(event)">点击次数：</button>
​
<input id="myInput" type="text">
​
<script>
function myFunction(event) {
  var x = event.detail;
  document.getElementById("myInput").value = x;
}
</script>
​
</body>
</html>
​