请问一下，我的问题出在哪里？第二个和第三个点击没有反应。。

来源：4-1 JS-WINDOW

kennedyzhou86

2018-11-01 16:37:17

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title> window </title>
</head>
<body>
<button onclick="openwindow()" >创建窗口</button>
<button oncllick="myFunction()">调整窗口</button>
<button oncllick="moveFunction()" >移动窗口</button>
<button oncllick="closeFunction()" >关闭窗口</button>

<script type="text/javascript">
var w;
function openwindow(){
w=window.open('','','width=300,height=300');
}

function myFunction(){
w.resizeTo(500,500);
w.focus();
}

function moveFunction(){
w.moveTo(700,500);
w.focus();
}

function closeFunction(){
w.close(700,500);
w.focus();
}

</script>

</body>
</html>