Js现代事件处理方式中，怎么针对老版本的浏览器做兼容性处理？

Answer 1

In the modern event processing method of JS, how to deal with compatibility for older versions of browsers? -PHP Chinese website Q&A-In the modern event processing method of JS, how to deal with compatibility for old versions of browsers? -PHP Chinese website Q&A

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Answer 2

If(document.addEventListener){

[object].addEventListener(“事件名称”，函数名，true/false)     //DOM

}else if(document.attachEvent){

[object].aattachEvent(“事件名称”，函数名，true/false)     //   IE

}