[英]setTimeout() won't execute
我有兩個使用setTimeout().
例子setTimeout().
這個有效:
<html>
<head>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type="text/javascript">
google.load('visualization','1',{packages:['table']});
function start() {
setTimeout(ShowClipboardContent, 2000);
}
function ShowClipboardContent() {
var data = new google.visualization.DataTable(window.clipboardData.getData('Text'));
var table = new google.visualization.Table(document.getElementById('div'));
table.draw(data,{showRowNumber: true});
}
</script>
</head>
<body>
<button onclick='start();'>Show text data in clipboard</button>
<div id='div'></div>
</body>
</html>
但這不會:
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
google.load('visualization','1',{packages:['table']});
</script>
<script type='text/javascript'>
//runs powershell and copies output onto clipboard
function powershell(t) {
//object that will execute powershell
var run = new ActiveXObject("Shell.Application");
//breaks the list of servers into array
var servers = t.textarea.value.split('\n');
//script that powershell will run
var script = 'some powershell command';
//path to powershell.exe
var program = 'C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe';
//putting it all together
run.ShellExecute(program,script,'','open','1');
setTimeout(drawTable, 10000);
}
//draws data table using data from clipboard
function drawTable() {
var data = new google.visualization.DataTable(window.clipboardData.getData('Text'));
var table = new google.visualization.Table(document.getElementById('table'));
table.draw(data, {showRowNumber: true});
}
</script>
</head>
<body>
<div id='form'>
<form>
Enter name(s):<br />
<textarea id='textarea' style='width:20%; height:500px;'></textarea><br />
<button onclick='powershell(this.form)'>Query</button>
</form>
</div>
<div id='table'></div>
</body>
</html>
重申一下:問題是setTimeout()
不適用於第二個代碼,但適用於第一個代碼,我想知道為什么,因為我看不出有什么區別。
嘗試添加一個console.log(drawTable);
就在你超時之前。 如果它返回“函數”,那很好,你的超時就可以了。 如果沒有返回任何內容,您的 ActiveX 腳本應該會破壞代碼
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