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请问 jQuery 事件委托的原理是什么?

$(document.body).on("click", "li", function(e) {
    // 输出 LI
    console.log(e.currentTarget.tagName);
});
document.body.addEventListener("click", function(e){
    // 输出 body
    console.log(e.currentTarget.tagName);
});

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就是事件冒泡


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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