实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
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<!DOCTYPE html>
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<html>
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<head>
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<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js">
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</script>
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<script>
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x=0;
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y=0;
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$(document).ready(function(){
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  $("div.over").mouseover(function(){
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    $(".over span").text(x+=1);
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  });
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  $("div.enter").mouseenter(function(){
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    $(".enter span").text(y+=1);
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  });
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});
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</script>
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</head>
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<body>
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​
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<p>The mouseover event triggers when the mouse pointer enters the child elements as well as the selected element.</p>
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<p>The mouseenter event is only triggered when the mouse pointer enters the selected element. </p>
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​
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<div class="over" style="background-color:lightgray;padding:20px;width:250px;float:left">
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<h3 style="background-color:white;">Mouseover event triggered: <span></span></h3>
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</div>
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​
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<div class="enter" style="background-color:lightgray;padding:20px;width:250px;float:right">
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<h3 style="background-color:white;">Mouseenter event triggered: <span></span></h3>
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</div>
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​
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</body>
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</html>