crystal_iwwish 2021-11-25 18:44:27
Jquery DOM 入口 jquery-dom








$(DOM对象) 注意:不能加引号



( ′ j q u e r y ′ ) [ D o m 元 素 下 标 ] , ('jquery')[Dom元素下标], (jquery)[Dom](jquery).get(索引值)



 window.addEventListener("load", function () {

window.addEventListener("load", function () {

let div = document.querySelector("div");

等价于加载事件, 但是比加载事件快一点,dom加载完执行(当JavaScript放在前面时使用)


$(document).ready(function (){

window.addEventListener("load", function () {

let div = document.querySelector("div");



window.addEventListener("load", function () {

let div = document.querySelector("div");

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