html运行实例（eg_js_loop_for

代码示例：（标识：eg_js_loop_for_2）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 循环</h1>

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

<script>
var text = "";
var i;
for (i = 0; i < 5; i++) {
  text += "The number is " + i + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>

</body>
</html>