jquery scroll_jQuery scroll（）
jquery scroll
jQuery scroll() function triggers when the element is scrolled. This method attaches a handler, which executes when the scroll event is fired. A scroll event fires for all elements which are scrollable and it also fires for window objects.
jQuery scroll（）函数在元素滚动时触发。 此方法附加一个处理程序，该处理程序在滚动事件触发时执行。 对于所有可滚动的元素，将触发滚动事件；对于窗口对象，也将触发滚动事件。
jQuery scroll（） (jQuery scroll())
The syntax for using jQuery scroll() function is:
使用jQuery scroll（）函数的语法为：
- scroll() 滚动（）
This signature is used without any arguments. This method is a shortcut for .trigger( "scroll" ).
该签名不带任何参数。 此方法是.trigger( "scroll" )的快捷方式。
- scroll(handler) 滚动（处理）
The handler is a function, which is executed when the element gets scrolled. This method is a shortcut for .on( "scroll", handler ).
处理程序是一个函数，当元素滚动时执行。 该方法是.on( "scroll", handler )的快捷方式。
jQuery滚动示例 (jQuery scroll example)
Following example demonstrates jQuery scroll() function usage.
以下示例演示了jQuery scroll（）函数的用法。
<!DOCTYPE html>
<html>
<head>
<title>jQuery Scroll</title>
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<style>
p {
color: green;
}
.divScroll{
border:1px solid black;
width:100px;
height:200px;
overflow:scroll;
}
</style>
<script>
var x=0;
$(document).ready(function(){
$("div").scroll(function(){
$("span").text(x++);
});
});
</script>
</head>
<body>
<p><b>Scroll Event Demo</p>
<div class="divScroll">Paragraph one Paragraph two Paragraph three Paragraph four Paragraph five Paragraph six Paragraph seven</div>
<p>Scroll event triggered <b><span>0</span></b> times.</p>
</body>
</html>In this example, you can see that the scroll() method is triggered when you scroll in the <div> element. The handler attached to the scroll() method executes with each scroll event displays the count below the <div> element.
在此示例中，您可以看到在滚动<div>元素时触发了scroll（）方法。 附加到scroll（）方法的处理程序在每个滚动事件显示时在<div>元素下方显示计数。
jQuery滚动演示 (jQuery scroll demo)
You can try it yourself by scrolling in the below div section.
您可以滚动以下div部分来自己尝试。
jquery scroll