計(jì)時(shí)器運(yùn)行結(jié)果是這樣嗎
運(yùn)行結(jié)果是1459310763500 后面幾位數(shù)不停在動(dòng),我以為會(huì)輸出12:06:50這樣的格式計(jì)時(shí)
<!DOCTYPE HTML>
<html>?
<head>?
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">?
<title>定時(shí)器</title>?
<script type="text/javascript">
? var attime;?
? function clock(){?
? var time=new Date();?
? ?attime=time.getHours()+":"+time.getMinutes()+":"+time.getSeconds(); ? ? ? ? ? ?
? ? document.getElementById("clock").value = attime;
? }
? setInterval(clock,100);
</script>?
</head>?
<body>?
<form> <input type="text" id="clock" size="50" /> </form>
</body>?
</html>
2016-03-30
<!DOCTYPE html>
<html>
?<head>
? <title> 事件</title> ?
? <script type="text/javascript">
? ?function count(){
? ? ? ?
? ? var txt1 ? = parseInt( document.getElementById('txt1').value);//獲取第一個(gè)輸入框的值
var txt2 ? = parseInt( document.getElementById('txt2').value);//獲取第二個(gè)輸入框的值
var select = document.getElementById('select').value;//獲取選擇框的值
var result = '';
? ? switch (select)
{
case '+':
result = txt1 + txt2;
break;
case '-':
result = txt1 - txt2;
break;
case '*':
result = txt1 * txt2;
break;
case '/':
result = txt1 / txt2;
break; ?
}
//獲取通過(guò)下拉框來(lái)選擇的值來(lái)改變加減乘除的運(yùn)算法則
? ?document.getElementById('fruit').value = result;//設(shè)置結(jié)果輸入框的值?
? ??
? ?}
? </script>?
?</head>?
?<body>
? ?<input type='text' id='txt1' />?
? ?<select id='select'>
<option value='+'>+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
? ?</select>
? ?<input type='text' id='txt2' />?
? ?<input type='button' value=' = ' /> <!--通過(guò) = 按鈕來(lái)調(diào)用創(chuàng)建的函數(shù),得到結(jié)果-->?
? ?<input type='text' id='fruit' /> ??
?</body>
</html>