html运行实例（jsck_state_if_elseif）-搜寻教程库

代码示例：（标识：jsck_state_if_elseif）

<!DOCTYPE html>
<html>
<body>

<p>单击这个按钮可显示基于时间的问候语。</p>

<button onclick="myFunction()">试一试</button>

<p id="demo"></p>

<script>
function myFunction() {
  var time = new Date().getHours();
  var greeting;
  if (time < 10) {
    greeting = "Good morning";
  } else if (time < 20) {
    greeting = "Good day";
  } else {
    greeting ="Good evening";
  }
document.getElementById("demo").innerHTML = greeting;
}
</script>

</body>
</html>