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/JavaScript進階篇
<input type="button" value="點擊暫停" onclick="clearInterval(i)" />
2020-05-09
源自:JavaScript進階篇 8-4
正在回答
<!DOCTYPE?HTML>
<html>
????<head>
????????<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
????????<title>計時器</title>
????????<script?type="text/javascript">
???????????function?clock(){
?????????????????var?time=new?Date();
?????????????????document.getElementById("clock").value?=?time;
???????????}
???????????var?i;
???????????function?start()?{???
?????????????i?=?setInterval("clock()",100);
???????????i=setInterval("clock()",100);
????????</script>
????</head>
????<body>
??????<form>
??????????<input?type="text"?id="clock"?size="50"??/>
??????????<input?type="button"?value="Stop"?onclick="clearInterval(i)"?/>
??????????<input?type="button"?value="Start"?onclick="start()"?/>
??????????
??????</form>
????</body>
</html>
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舉報
本課程從如何插入JS代碼開始,帶您進入網(wǎng)頁動態(tài)交互世界
4 回答再加一個按鈕star,點擊按鈕計時器繼續(xù)運行怎么實現(xiàn)呢
2 回答怎么弄停止后繼續(xù),繼續(xù)后還能停止
2 回答時間停止和繼續(xù)問題,代碼貼在下面,為何先點擊繼續(xù)時間按鈕就不能停止了,停止按鈕無效了,怎么回事?
1 回答停止之后怎樣再次啟動
2 回答再加個按鈕“刷新”,,,stop停止后,按刷新又可以繼續(xù)計時,該怎么弄呢?大神們
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2020-06-08
<!DOCTYPE?HTML>
<html>
????<head>
????????<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
????????<title>計時器</title>
????????<script?type="text/javascript">
???????????function?clock(){
?????????????????var?time=new?Date();
?????????????????document.getElementById("clock").value?=?time;
???????????}
???????????var?i;
???????????function?start()?{???
?????????????i?=?setInterval("clock()",100);
???????????}
???????????i=setInterval("clock()",100);
????????</script>
????</head>
????<body>
??????<form>
??????????<input?type="text"?id="clock"?size="50"??/>
??????????<input?type="button"?value="Stop"?onclick="clearInterval(i)"?/>
??????????<input?type="button"?value="Start"?onclick="start()"?/>
??????????
??????</form>
????</body>
</html>
2020-05-31
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2020-05-31
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