abstract：<!DOCTYPE html><html><head><meta charset="UTF-8"><title></title></head><body><script type="text/javascript">function myfovus(x
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<script type="text/javascript">
function myfovus(x) {
x.style.background="red"
}
</script>
姓名：<input type="text" onfocus="myfovus(this)"></input>
</body>
</html>
Correcting teacher：查無此人Correction time：2019-04-10 15:40:38
Teacher's summary：完成的不錯(cuò)。下次縮進(jìn)代碼，每行js代碼結(jié)束，增加;號(hào)。繼續(xù)加油