html运行实例（eg_js_events_shiftkey）-搜寻教程库

代码示例：（标识：eg_js_events_shiftkey）

<!DOCTYPE html>
<html>
<head>
<script>
function isKeyPressed(event) {
  var text = "切换键未被按下！";
  if (event.shiftKey == 1) {
    text = "切换键被按下了！";
  }
  document.getElementById("demo").innerHTML = text;
}
</script>
</head>

<body>

<img src ="/static/demo/images/eg_planets.jpg" alt="Planets" 
onmousedown="isKeyPressed(event)" />

<p>点击上面的图片，会提示您是否按下了 shift 键。</p>

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

</body>
</html>