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HTML onbeforeprint 属性


定义和用法

当页面即将打印时(在打印对话框出现之前),onbeforeprint 属性会被触发。

提示:onbeforeprint 属性通常与 onafterprint 属性一起使用。


应用于

onbeforeprint 属性是 事件属性 的一部分,可以在以下元素上使用。

元素 事件
<body> onbeforeprint

示例

当页面即将打印时执行 JavaScript

<body onbeforeprint="myFunction()">
亲自尝试 »

浏览器支持

事件属性
onbeforeprint 63 不支持 不支持

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