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A. 找到图像左上角的位置
原标题:finding the top left corner position of an image
  • 时间:2012-01-16 06:31:40
  •  标签:
  • javascript

我的图象载于以下网址:www.o.<a href=“><img src=”/></a> 。 可能比这种形象高一或更多。 我如何找到这种形象的最左边位置? 我左边的顶端就是这种形象的X和 y协调立场。 我只想使用javascript,不使用 j,而只使用最简单的解决办法(数量很少)。 我所铭记的是:

topleftImgX = img.offsetTop - img.parentNode.scrollTop;
topleftImgY = img.offsetLeft = img.parentNode.scrollLeft;

这是正确的吗? 同样,只有 j,没有 j

最佳回答

我知道的最容易的方式是:

elem = document.getElementById("yourElement");//outer starts at your elem then walks out
var innerYValue = 0;
var innerXValue = 0;

while( elem != null ) {
    innerYValue += elem.offsetTop;
    innerXValue += elem.offsetLeft;
    elem = elem.offsetParent;
}

alert("x: "+innerXValue +"
y: "+innerYValue);
问题回答

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