麻烦老师 为什么我的点击事件没有反应？
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<script type="text/javascript">
$(document).ready(function() {
var index = 0;
function change(i) {
$('img').eq(i).css({
'opacity': '1',
}).siblings().css({
'opacity': '0',
})
}
/* $('a').click(function() {
index = $(this).index();
change(index);
});
$(document).keydown(function(event) {
//左37 右39
if (event.keyCode == 37) {
index = (index > 0) ? --index : $('a').length - 1;
} else if (event.keyCode == 39) {
index = (index < $('a').length - 1) ? ++index : 0;
} else {
return false;
}
change(index);
}) */
$("a").add(document).on({
click: function(e) {
e.preventDefault();
index = $(this).index();
change(index);
},
keydown: function(event) {
if (event.keyCode == 37) {
index = (index > 0) ? --index : $('a').length - 1;
} else if (event.keyCode == 39) {
index = (index < $('a').length - 1) ? ++index : 0;
} else {
return true;
}
change(index);
}
})
});
</script>
</html>
正在回答
同学你好，理解的冒泡机制没有问题。但是老师说了a元素先执行点击事件，然后再冒泡到document上执行点击事件
并没有说a元素不执行点击事件哦，建议再仔细看一下回复。
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