图像热点:给一张图片加多个链接,默认情况下,一张图只能加一个链接。
1、标记结构: <img src = “images/01.jpg” usemap = “#Map” /> <map id = “Map” name = “Map”> <area shape = “热区形状” cooRDS = “热区坐标” HRef = “链接地址” /> <area shape = “热区形状” coords = “热区坐标” href = “链接地址” /> <area shape = “热区形状” coords = “热区坐标” href = “链接地址” /> </map> 2、<area>标记的常用属性 Shape:热区的形状,取值:rect(矩形)、circle(圆形)、polygon(多边形) Coords:执区的坐标(位置) 如果 shape = rect 时,那么,coords = “x1,y1,x2,y2” 例如:coords = “50,50,200,150” (x1,y1)为矩形左上角的坐标值,(x2,y2)为矩形右下角的坐标值 如果 shape = circle 时,那么, coords = “x,y,r” ,其中(x,y)为圆心坐标,r为半径