我是javascript的初学者,你能告诉我下面的代码有什么问题吗？
我希望buttonPressed()在按下按钮时调用它.从buttonPressed()它应该调用changeColor1(),changeColor1()应该改变一个段落的文本颜色,并启动一个计时器来调用changeColor2().同样changeColor2()也应该改变颜色并changeColor1()在计时器到期后调用.
<html>
<head>
<script type="text/javascript">
function changeColor2()
{
alert("2");
var v = document.getElementById("onet");
v.style.color = rgb(0,255,255); // this statement is not working
var t=setTimeout(changeColor1,3000);
}
function changeColor1()
{
alert("1");
var v = document.getElementById("onet");
v.style.color = rgb(255,255,0); // this statement is not working
var t=setTimeout(changeColor2,3000);
}
function buttonPressed()
{
alert("Hello");
changeColor1();
}
</script>
</head>
<body>
<p id="onet"> Hello how are you? </p>
<form>
<input type="button" value="Display alert box!" onClick="buttonPressed()" />
</form>
</body>
</html>
不要调用该函数,仅传递引用:
var t=setTimeout(changeColor2,3000);
我想你想style.color不.color.
顺便说一下 ......请告诉我们代码应该实际做什么以及最初有什么问题.