这个代码是什么意思

<map name="Map" id="Map">
<area shape="rect" coords="673,17,774,41" href="8" target="_blank" />
<area shape="rect" coords="572,17,673,41" href="7" target="_blank" />
<area shape="rect" coords="469,17,570,41" href="6" target="_blank" />
<area shape="rect" coords="366,17,467,41" href="5" target="_blank" />
<area shape="rect" coords="266,17,367,41" href="4" target="_blank" />
<area shape="rect" coords="166,17,267,41" href="3" target="_blank" />
<area shape="rect" coords="66,17,167,41" href="2" target="_blank" />
<area shape="rect" coords="1,17,62,43" href="1" target="_blank" />

DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.
下表中的DTD列指明了被支持的DTD属性。S=Strict（精确的），T=Transitional（传统的），F=Frameset（框架）

属性	值	描述	DTD
alt	text	Specifies an alternate text for the area 为area提供替换文字	STF

Optional Attributes
可选属性

属性	值	描述	DTD
coords	if shape="rect" then coords="left,top,right,bottom" if shape="circ" then coords="centerx,centery,radius" if shape="poly" then coords="x1,y1,x2,y2,..,xn,yn"	Specifies the coordinates for the clickable area 为可点击区域指定坐标范围	STF
href	URL	Specifies the target URL of the area 指定区域的目标URL	STF
nohref	true false	Excludes an area from the image map 从图片热点区中排除	STF
shape	rect rectangle circ circle poly polygon	Defines the shape of the area 定义区域形状	STF
target	_blank _parent _self _top	Where to open the target URL. 如何打开连接 _blank - the target URL will open in a new window 在新窗口 _self - the target URL will open in the same frame as it was clicked 在自身窗口或是自身框架 _parent - the target URL will open in the parent frameset 在父级框架集中打开 _top - the target URL will open in the full body of the window 在窗口主体部分打开	TF

Standard Attributes
标准属性

id, class, title, style, dir, lang, xml:lang, tabindex, accesskey

For a full description, go to Standard Attributes.
查看完整描述

Event Attributes
事件属性

onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup, onfocus, onblur

热区