這一期介紹一些簡單的事件處理:
1.鼠標點擊 復制代碼 代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
function click1(obj)
{
alert(obj.innerHTML);
}
</script>
</head>
<body>
<div onclick="click1(this)" style="cursor:pointer">點擊我吧</div>
</body>
</html>
this即div的上下文,點擊後會彈出<div>之間的內容。
2.鼠標移動 復制代碼 代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
function mouse1(obj)
{
obj.style.color = "#f00";
obj.style.fontSize = "18px"
}
function mouse2(obj)
{
obj.style.color = "#000";
obj.style.fontSize = "16px"
}
</script>
</head>
<body>
<div onmouseover="mouse1(this)" onmouseout="mouse2(this)">移動到這兒</div>
</body>
</html>
onmouseover鼠標放到那兒時,會把字體變大,字體成為紅色,離開時字體和顏色恢復。
3.with用法 復制代碼 代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
with(document)
{
write("niujiabin"+"<br/>");
write("maybe"+"<br/>");
write("gossip"+"<br/>");
}
</script>
</head>
<body>
</body>
</html>
效果與如下相同 復制代碼 代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
document.write("niujiabin"+"<br/>");
document.write("maybe"+"<br/>");
document.write("gossip"+"<br/>");
</script>
</head>
<body>
</body>
</html>