Ctrl+/
IE11
F11
ESC
PgUp
PgDn
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>填空</title>
</head>
<body>
<SCRIPT LANGUAGE='JavaScript'>
function fillall(){
for (var i = 0; i < 24; i++) {
document.form.elements[i].checked=1
}
CSS代码...
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JS代码...