MouseEvent and Onclick
MouseEvent and Onclick
我制作了一个评级系统,当用户将鼠标移到上面时,星星变成黄色,当用户将鼠标移出时,星星变成白色。
然而,我想做一个功能,当用户点击星号,它变成黄色,永远不会变成白色,即使当鼠标离开。我尝试使用鼠标向下操作,但是鼠标离开事件仍然出现。
<script>
function changeImage1() {
document.getElementById('myImage1').src="yellow.jpg";}
function reset(){
document.getElementById('myImage1').src= "whitestar.jpg";}
</script>
<body>
<img id="myImage1" onmouseover="changeImage1()" onmouseout="reset()" width="150" height="150"src="whitestar.jpg">
</body>
为什么不在鼠标中测试黄色,然后返回false?
<img id="myImage1" width="150" height="150">
<script>
var img = document.getElementById('myImage1');
img.addEventListener('mouseover', changeImage1, false);
img.addEventListener('mouseout', reset, false);
img.addEventListener('click', click_, false);
function changeImage1() {
img.src = 'yellow.jpg';
}
function reset() {
img.src = 'whitestar.jpg';
};
function click_() {
img.removeEventListener('mouseover', changeImage1, false);
img.removeEventListener('mouseout', reset, false);
};
</script>
你可以使用jquery点击事件处理程序
<img id="myImage" src="whitestar.jpg">
为img元素分配点击处理程序
$( "#myImage" ).click(function() {
$(this).attr('src','yellow.jpg');
});
编辑不使用JQUERY
<img onclick="this.src='yellow.jpg';" id="myImage" src="whitestar.jpg">
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