????：<!DOCTYPE html> <html> <head> <title>事件學(xué)習(xí)</title> </head> <body> <script type="text/javascript"> function myfocus(a){ a.style
<!DOCTYPE html>
<html>
<head>
<title>事件學(xué)習(xí)</title>
</head>
<body>
<script type="text/javascript">
function myfocus(a){
a.style.background="red"
}
function myblur(a){
a.style.background="blue"
}
</script>
您的姓名：<input type="text" onfocus="myfocus(this)" onblur="myblur(this)">
</body>
</html>
?? ???：西門大官人?? ??：2019-03-03 16:22:19
???? ??：作業(yè)寫的很好。在js代碼中，最好在每行加上";"，規(guī)范一些