知道两点的坐标计算机出他们之间的距离

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知道两点的坐标计算机出他们之间的距离

[ 发布者：luwei | 来源：本站整理 | 时间：2005-10-25 | 浏览：人次 ]

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<title>网页特效|JcwCn.Com/Js|---　知道两点的坐标计算机出他们之间的距离</title>
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<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function distance(form) {
var x1 = eval(form.x1.value);
var y1 = eval(form.y1.value);
var x2 = eval(form.x2.value);
var y2 = eval(form.y2.value);
var xdiff = x2 - x1;
var ydiff = y2 - y1;
form.answer.value = Math.pow((xdiff * xdiff + ydiff * ydiff), 0.5);
}
//  End -->
</script>
<center>
<form>
<table border=3 cellspacing=2 cellpadding=5>
<tr>
<td colspan=4 align=center>计算平面两点之间的距离</td>
</tr>
<tr>
<td colspan=2 align=center>A点</td>
<td colspan=2 align=center>B点</td>
</tr>

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