1.是在javascript 项目中创建的,这是哪错了啊
Run VCS Tools Window Help JavaWeb D:WorkSpacelavawebl
-gocumenttesth
test.html
<IDOCTYPEhtml>
2 <html lang=”en”
<head>
4 <meta charset="UTF-8”
5 <title>Title</title)
6 <script type=“text/javascript"
function fun(){
Mar is
10 Mar usernameObj=document.getElementById(user
usernameObj.typei
13
14 </script>
15 </head>
16 <body>
17 用户名: <input type=“text” id="username”value=“)
8 <buttononclick="fun()“>按钮</button>
19 </body>
20 </html)