但是我现在有一个图片，是300*250像素的
我的想法是：把这个图片以200*200显示，但是有一个要求
就是不能做上下拉伸，那样很难看，我想要的是最大的那个压缩成200像素，另外的那个同比例压缩，然后多余的地方用空白表示就可以，我的意思能明白吧
就像下面这个链接里面的图片一样
http://www.laiko.net/pdlistone/products/7115373.html
代码应该如何写呢，谢谢大家了
就是同比例压缩后居中，多余的部分用空白显示，这样的一排排的图片排列会很好看
回复讨论(解决方案)
<script> <br /> function resizeImg(img) <br /> { <br /> if(img.width>200 || img.height>200) <br /> { <br /> if(img.width/img.height>1){ <br /> img.width = 200 <br /> } <br /> else <br /> { <br /> img.height = 200 <br /> } <br /> } <br /> } <br /> </script>
这个中间没有空白，只是实现了等比例缩放，你看一下，我的连接，
E章先生
<script> <br /> function resizeImg(img) <br /> { <br /> if(img.width>200 || img.height>200) <br /> { <br /> if(img.width/img.height>1){ <br /> img.width = 200 <br /> } <br /> else <br /> { <br /> img.height = 200 <br /> } <br /> } <br /> } <br /> </script>
中间没有空白，只是实现了等比例缩放
没有空白，那肯定是把超出的截断了
等比例，要么空白，要么截掉，
没有其他效果
要截断，放置div
上面的判断就改成
img.width = 200
为
img.height = 200
谢谢你，但是我要的结果是这样的
1、等比例缩小
2、多余部分空白
3、你看一下，我发的网址，那个图片是等比例缩小过后的，然后上下都是空白，看到了吗
我就要这种效果，因为等比例后，还是不能做到长：宽是1:1，我就要1:1这个效果
然后居中，有什么办法吗？
中间没有空白，只是实现了等比例缩放
没有空白，那肯定是把超出的截断了
等比例，要么空白，要么截掉，
没有其他效果
要截断，防止
你既然有现成的对比，你看他的源代码不就明白了吗》
道理已经说明了，
等比例缩小
多余部分空白
都已经实现
上下都是空白
你设置容器上下居中即可，最简单方法是放入
有可能是我错了，但是我用了代码，的确不是这个效果
你既然有现成的对比，你看他的源代码不就明白了吗》
道理已经说明了，
等比例缩小
多余部分空白
都已经实现
上下都是空白
你设置容器上下居中即可，最简单方法是放入
怎么是不行的？？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><script>function resizeImg(img){if(img.width>200 || img.height>200){if(img.width/img.height>1){img.width = 200}else{img.height = 200}}}</script><table style="border:1px solid red;"><tr><td style="text-align:center;vertical-align:middlee;width:200px;height:200px"><img src="/static/imghwm/default1.png" data-src="http://i1.sinaimg.cn/dy/2012/0925/U8843P1DT20120925164539.jpg" class="lazy" onload="resizeImg(this)" / alt="【国庆快乐，紧急求助】一个关于图片显示的问题_html/css_WEB-ITnose" ></td></tr></table><br/><table style="max-width:90%"><tr><td style="text-align:center;vertical-align:middlee;width:200px;height:200px"><img src="/static/imghwm/default1.png" data-src="http://www.sinaimg.cn/dy/slidenews/1_img/2012_39/31171_198603_171991.jpg" class="lazy" onload="resizeImg(this)" / alt="【国庆快乐，紧急求助】一个关于图片显示的问题_html/css_WEB-ITnose" ></td></tr></table> 非常感谢，还有一个问题
 | | | | | | |
上面是我的代码，但是一个横排的图片，每个中间都没有间隔
我想让他们有间隔，应该怎么办
怎么是不行的？？HTML code
nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script> <br /> funct…… <p class="sougouAnswer"> 这样 <br /> <table border="0" cellspacing="6" > <p class="sougouAnswer"> 谢谢你，我做到了，非常感谢，还有一个问题想请教你 <br /> http://www.mainlandchemical.com/chanpinmingxi.do?bianma=10210 <br /> 这个网页上面介绍产品的（右边）下划虚线是如何实现的，我看后台的代码是用table <br /> 但是引用的阿里巴巴的代码，太乱了，根本看不清楚，请问如何才能实现呢？ <br /> 非常感谢E章兄 <br /> 这样 <br /> <table border="0" cellspacing="6" > <p class="sougouAnswer"> 下划虚线如何实现 <br /> <br /> css中可以定义线型 ,可选 none,dotted, dashed, solid, double。 </script>
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