abstract:<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">&
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>实战热身-聊天信息生成原理</title> </head> <body> <input type="text" name="info"> <button>提交</button> <ul></ul> <script> //获取元素 let input = document.getElementsByName('info')[0]; let button = document.getElementsByTagName('button')[0]; let ul = document.getElementsByTagName('ul')[0]; button.onclick = function (){ let li = document.createElement('li'); li.innerHTML = input.value; //文本框中的内容 let first = ul.firstElementChild; ul.insertBefore(li,first); //将用户输入的信息显示到列表中最前面 input.value = ''; //将文本框中内容清空 } </script> </body> </html>
Correcting teacher:查无此人Correction time:2019-03-18 09:45:20
Teacher's summary:完成的不错。每个项目,都是先从页面开始。继续加油。