<html>
<head>
<meta http-equiv="Content-Type" content="text/html" charset="utf-8" />
<title></title>
</head>
<body>
<button class="button" type="button">点击查看</button>
<div id="content"></div>
<script>
function myDay(date) {
switch (date) {
case 0:
return "星期天"
break;
case 1:
return "星期一"
break;
case 2:
return "星期二"
break;
case 3:
return "星期三"
break;
case 4:
return "星期四"
break;
case 5:
return "星期五"
break;
case 6:
return "星期六"
break;
}
}
var button = document.getElementsByClassName('button')[0];
var con = document.getElementById('content')
var date = new Date().getDay()
button.onclick = function functionName() {
con.innerHTML = myDay(date)
}
</script>
</body>
</html>
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