​x
 
<!DOCTYPE html>
<html>
<body>
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<p>单击按钮可显示本月的名称。</p>
​
<button onclick="myFunction()">试一试</button>
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<p id="demo"></p>
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<script>
function myFunction() {
  var month = new Array();
  month[0] = "January";
  month[1] = "February";
  month[2] = "March";
  month[3] = "April";
  month[4] = "May";
  month[5] = "June";
  month[6] = "July";
  month[7] = "August";
  month[8] = "September";
  month[9] = "October";
  month[10] = "November";
  month[11] = "December";
​
  var d = new Date();
  var n = month[d.getMonth()];
  document.getElementById("demo").innerHTML = n;
}
</script>
​
</body>
</html>
​