為什么是1 3才可以 輸出愛你 不是左閉右開嗎
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Array對象 </title>
<script type="text/javascript">
? ?var myarr1= ["我","愛","你"];
? ?document.write(myarr1.slice(1,4));
</script>
</head>
<body>
</body>
</html>
2019-08-18
你可以直接這樣寫：
?document.write(myarr1.slice(myarr1.indexOf("愛")));
2019-11-08
你直接(1)也可以，document.write(myarr1.slice(1));
2019-07-09
懂了，逗號不算哎