Page HTML :
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title></title> </head> <body> </body> </html>
1. Ajouter des éléments en HTML
🎜>
<script>
//append()创建一个列表
const ul=document.createElement("ul");
//循环来生成多个列表li
for(let i=1;i<=5;i++){
const li=document.createElement("li");
li.textContent=`item${i}`;
ul.append(li);
}
console.log(ul);
</script>
li= document.createElement("li");
li.textContent="第一个元素";
ul.insertAdjacentElement("afterbegin",li);
li= document.createElement("li");
li.textContent="最后一个元素";
ul.insertAdjacentElement("beforeend",li);