

<
html
xmlns
="http://www.w3.org/1999/xhtml"
>
< head runat ="server" >
< title ></ title >
</ head >
< body >
< form id ="form1" method ="get" >
< div >
< input type ="image" src ="but_seab.gif" value ="测试坐标系" />
</ div >
</ form >
</ body >
</ html >
< head runat ="server" >
< title ></ title >
</ head >
< body >
< form id ="form1" method ="get" >
< div >
< input type ="image" src ="but_seab.gif" value ="测试坐标系" />
</ div >
</ form >
</ body >
</ html >
当点击提交的图片按钮时会在出现两个参数x,y是鼠标在点击图片的时候图片的坐标值,解决方案是放弃用image控件,改为用submit或者Button,加个背景图片即可。
在w3.org上是这么解释的
When a pointing device is used to click on the image, the form is submitted and the click coordinates passed to the server. The x value is measured in
pixels from the left of the image, and the y value in
pixels from the top of the image. The submitted data includes
name.x=
x-value and
name.y=
y-value where
"name" is the value of the
name attribute, and
x-value and
y-value are the x and y coordinate values, respectively.
地址:
http://www.w3.org/TR/html4/interact/forms.html#h-17.4