JS：
使用JS实现单击连接保存图片2种形式都可以第一种：
<script>
function SaveAs5(imgURL)
{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000,
left=5000")
for(oPop.document.readyState != "complete")
{ if (oPop.document.readyState == "complete")break}
oPop.document.execCommand("SaveAs")oPop.close()
}
</script>
<img src="t_screenshot_17616.jpg" id="DemoImg" border="0"
onclick="SaveAs5(this.src)">
第二种：
<script>function SaveAs5(imgURL)
{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000,
left=5000")
for(oPop.document.readyState != "complete")
{ if (oPop.document.readyState == "complete")break}
oPop.document.execCommand("SaveAs")oPop.close()
}
</script>
<img src="../t_screenshot_17616.jpg" id="DemoImg" border="0">
<a href="#" onclick="SaveAs5(document.getElementByIdx_x('DemoImg').src)">
点击这里下载图片 </a>
PHP:
<a href="test.php?url=uploads/1112/1-11122212201R28.jpg">下载</a>
test.php文件代码：
<?php
$dir=$_GET['url'] //获取图片地址$file = fopen($dir,"r") // 打开文件
Header("Content-type: application/octet-stream")
Header("Accept-Ranges: bytes")
Header("Accept-Length: ".filesize($dir))
Header("Content-Disposition: attachment filename=" . $dir)
echo fread($file,filesize($dir))
fclose($file)
exit
?>
使用JS实现单击连接保存图片2种形式都可以
第一种：
<script>
function SaveAs5(imgURL)
...{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000, left=5000")
for( oPop.document.readyState != "complete" )
...{
if (oPop.document.readyState == "complete")break
}
oPop.document.execCommand("SaveAs")
oPop.close()
}
</script>
<img src="t_screenshot_17616.jpg" id="DemoImg" border="0" onclick="SaveAs5(this.src)">
第二种：
<script>
function SaveAs5(imgURL)
...{
var oPop = window.open(imgURL,"","width=1, height=1, top=5000, left=5000")
for( oPop.document.readyState != "complete" )
...{
if (oPop.document.readyState == "complete")break
}
oPop.document.execCommand("SaveAs")
oPop.close()
}
</script>
<img src="../t_screenshot_17616.jpg" id="DemoImg" border="0">
<a href="#" onclick="SaveAs5(document.getElementById('DemoImg').src)">点击这里下载图片 </a>
<img src="image\00.jpg" id="select" class="style2"/><script>
function test(){
var test1=document.getElementById("select").src
window.alert(test1)
}
test()
</script>
js代码执行应该放图片元素后面。 放在前面的时候，元素还是没有被浏览器加载，因此找不到
