特效千寻－计算平面两点之间的距离

计算平面两点之间的距离

加入如下代码到body区域

<SCRIPT LANGUAGE="JavaScript">

</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>
<tr>
<td align=center>A点横坐标</td>
<td align=center>A点纵坐标</td>
<td align=center>B点横坐标</td>
<td align=center>B点纵坐标</td>
</tr>
<tr>
<td align=center><input type=text name=x1 size=5></td>
<td align=center><input type=text name=y1 size=5></td>
<td align=center><input type=text name=x2 size=5></td>
<td align=center><input type=text name=y2 size=5></td>
</tr>
<tr>
<td colspan=4 align=center><input type=button value="计算距离" onClick="distance(this.form)"></td>
</tr>
<tr>
<td colspan=4 align=center><input type=text name=answer size=20></td>
</tr>
</table>
</form>
</center>

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