试试<br><br><br><br><br><br><br><br><br><br><br><br>
<div id="test" style="position:absolute;top:200px">test</div>
<input type="button" value="Up" onclick="moveUp()">
要想实现每次单击按钮时<div>块向上移动20px,请问moveUp()函数如何写?
<script language="javascript">
function moveUp() {
document.all.test.style.posTop -=20;
}
</script>
<div id="test" style="position:absolute;top:200px">test</div>
<input type="button" value="Up" onclick="moveUp()">
要想实现每次单击按钮时<div>块向上移动20px,请问moveUp()函数如何写?
<script language="javascript">
function moveUp() {
document.all.test.style.posTop -=20;
}
</script>
还有能不能使用moveBy来移动<div>文本块?
2。moveBy是window的函数,其它元素无此函数
<input type="button" value="Up" onclick="moveUp()">
<div id="test2" style="position:absolute;top:300px">test2</div>
<input type="button" value="Up" onclick="moveUp2()">
<script>
function moveUp() {
document.all.test.style.pixelTop -=20;
}
function moveUp2() {
document.all.test2.style.pixelTop -=20;
}
</script>
<input type="button" value="Up1" onclick="moveUp()">
<div id="test2" style="position:absolute;top:300px">test2</div>
<input type="button" value="Up2" onclick="moveUp2()">
<script>
function moveUp() {
if(document.all.test.style.pixelTop<=0)
alert("别移了")
else
document.all.test.style.pixelTop -=20;
}
function moveUp2() {
if(document.all.test2.style.pixelTop<=0)
alert("别移了")
else
document.all.test2.style.pixelTop -=20;
}
</script>
<div id="test" style="position:relative;top:200px">
<p>test</p>
<p>test1</p>
<p>test3</p>
</div>
<input type="button" value="Up1" onclick="moveUp()">
<script>
function moveUp() {
if(document.all.test.style.pixelTop<=0)
alert("别移了")
else
document.all.test.style.pixelTop -=20;
}
当单击一次按钮时,让<p>test</p>消失,单击二次按钮时,让<p>test1</p>也消失,如何实现?
<p>test</p>
<p>test1</p>
<p>test3</p>
</div>
<input type="button" value="Up1" onclick="moveUp()">
<script>
function moveUp() {
if(document.all.test.style.pixelTop<=-document.all.test.offsetHeight)
alert("别移了")
else
document.all.test.style.pixelTop -=20;
}
</script>
<p>test</p>
<p>test1</p>
<p>test3</p>
</div>
<input type="button" value="Up1" onclick="moveUp()">
<script>
function moveUp() {
with(document.all.test){
if(style.pixelTop<=0)
if(children.length>1)
removeChild(children[0])
else
alert("别移了")
else
style.pixelTop -=20;
}
}
</script>