标签：号码 无限 dom java w3c www public tle document
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>范例5-7</title>
</head>
<body>
<script language="javascript">
var num = 1;
while( num < 101 )
{
document.write( num + " " );
num++;
}
</script>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>范例5-8</title>
</head>
<body>
<script language="javascript">
var num = 1;
do
{
document.write( num + " " );
num++;
}
while( num < 101 )
</script>
</body>
</html>
while ...break
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>范例5-9</title>
</head>
<body>
<script language="javascript">
var time = 0;
while( true ) // 无限循环
{
time++;
var random = Math.floor( Math.random() * (1000) ); // 摇奖，随机产生2位中奖号码
if( random == 352 ) // 这位彩票迷的号为：35
{
alert( "恭喜你，偿试了" + time + "遍，终于中了一次奖（号码：352）");
break;
}
}
</script>
</body>
</html>
标签：号码 无限 dom java w3c www public tle document
原文地址：http://www.cnblogs.com/huodaihao/p/7327807.html
