我是jquery的新手,我的脚本的一部分有问题。基本上当鼠标悬停在按钮上时我正在制作下拉div,但是div开始像疯了一样上下移动。这就是我所做的:`
<script type="text/javascript">
public var boolean opened = false;
$("#drop1").slideUp();
$("#first").mouseover(function(){
$("#drop1").slideDown();
});
$("#first").mouseout(function(){
$("#drop1").slideUp();
});
});
我也尝试使用布尔变量,但它给了我错误。
<script type="text/javascript">
$(document).ready(function(){
public var boolean opened = false;
$("#drop1").slideUp();
$("#first").mouseover(function(){
if(!opened){
$("#drop1").slideDown();
opened = true;
}
});
$("#first").mouseout(function(){
if(opened){
$("#drop1").slideUp();
opened = false;
}
});
});
如果你愿意,这里是HTML,但我认为一切都还可以。
<link rel="stylesheet" type="text/css" href="design.css">
<div id="first" style="position: absolute; left: 0px;">
<a class="btn" href = "TheShooter/Launcher.exe" ><b>LAN shooter project</b></a>
<div id="drop1">
<a href = "TheShooter/index.php"><em>shooter project main page</em></a> <br/>
info: Local Area Network multiplayer game, made with unity. Project not finished yet, but sometimes fun to play. <br/>
controls: walking: w,a,s,d<br/>
shoot: LMB.<br/>
zoom: RMB.
</div>
</div>
感谢您的帮助。
- 尼克
答案 0 :(得分:3)
嗨,请参考这个应该回答你问题的小提琴。无需添加任何布尔值或条件检查:
<div id="wrap">
<div id="text">text</div>
<div id="video">video</div>
和js
$(document).ready(function(){
$("#wrap").mouseover(function(){
$("#video").stop().slideDown("slow");
});
$("#wrap").mouseout(function(){
$("#video").slideUp("slow");
});
});
和css
#text
{
margin-top:20px;
float:center;
font:VNF-Museo;
font-size:40px;
color: #333;
margin-left:auto;
margin-right:auto;
border: 1px solid #000;
}
#video
{
display:none;
width:1024px;
height:278px;
border: 1px solid #000;
}
答案 1 :(得分:3)
所以看起来你可能更习惯像C#这样的强类型语言。 JavaScript及其库jQuery是松散类型的,这意味着您不会声明范围或类型。以上代码清理了一下,使用了正确的语法并解决了您所看到的问题:
$(document).ready(function(){
var opened = false;
// Instead of sliding this up, give the #drop1 element
// a property of display: none; to start - then remove the line below
$("#drop1").slideUp();
$("#first").mouseover(function(){
if(!opened){
// Below, I'm using a callback, which means the boolean
// won't update to true until after the animation is finished
$("#drop1").slideDown(400, function() {
opened = true;
});
}
})// Since it's the same element, we can chain events
.mouseout(function(){
if(opened){
// Another callback
$("#drop1").slideUp(400, function() {
opened = false;
});
}
}
});
});
如果您对上述内容有任何疑问,请与我们联系!
答案 2 :(得分:2)
我认为你应该尝试这样的事情:
$(document).ready(function() {
$("#first").mouseover(function(){
$("#drop1").slideDown("slow");
});
$("#first").mouseout(function(){
$("#drop1").slideUp("slow");
});
});
有关详细信息,请参阅上面的示例,来自jQuery官方文档:
答案 3 :(得分:2)
这是实例的另一个答案,
$(document).ready(function(){
$("#drop1").mouseover(function(){
$("#first").slideDown("slow");
});
$("#drop1").mouseout(function(){
$("#first").slideUp("slow");
});
});
&#13;
#first, #drop1 {
padding: 5px;
text-align: center;
background-color: #acacac;
border: solid 1px #c3c3c3;
}
#first {
padding: 50px;
display: none;
background-color: skyblue;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<div id="drop1">Mouse over on panel to slide down</div>
<div id="first">Hello Stackoverflow ..!</div>
&#13;