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Why can’t we use click event in JQuery
<html>
<head>
<title>测试JQuery</title>
<meta charset = "utf-8"/>
<style>
.class_1{
background-color: red;
}
</style>
<script type = "text/javascript" src = "../JQuery/jquery.js"></script>
<script language = "javascript">
$(document).ready(function(){
window.alert("Hello JQuery!");
});
//这里触发事件后不能输出您好
$('#test').click(function(){
window.alert('您好');
});
</script>
</head>
<body>
<input class = "class_1" type = "button" id="test" value = "点击测试"/>
</body>
</html>Yours can use click event$(document).ready(function(){
window.alert("Hello JQuery!");
//把代码放在 ready 方法里面 才起作用 因为要等文档加载完成 才能找到 test这个元素
//这里触发事件后不能输出您好
$('#test').click(function(){
window.alert('您好');
});
});But I changed it Even if you are like this, you won’t show it? ? ? <html>
<head>
<title>测试JQuery</title>
<meta charset = "utf-8"/>
<style>
.class_1{
background-color: red;
}
</style>
<script type = "text/javascript" src = "../JQuery/jquery.js"></script>
</head>
<body>
<input class = "class_1" type = "button" id="test" value = "点击测试"/>
<script language = "javascript">
$(document).ready(function(){
alert("Hello JQuery!");
});
//这里触发事件后不能输出您好
$('#test').click(function(){
alert('您好');
});
</script>
</body>
</html>Loading order problem.
###Is the jquery.js path correct? The window here in window.alert can be omitted. ###The above is the detailed content of JQuery cannot use click event to solve the problem. For more information, please follow other related articles on the PHP Chinese website!