更新时间:2023-12-02 22:52:58
你不能阻止软件按任何键,相当显然。 :-)
您可以通过忽略某些点击来进行控制。例如,这是如何过滤掉除数字之外的所有字符:
You cannot prevent pressing any key by the software, quite apparently. :-)
You can make some control ignoring some clicks. For example, this is how to filter out all characters but digits:
<html>
<head>
<script type="text/javascript"><!--
function filterDigits(eventInstance) {
eventInstance = eventInstance || window.event;
key = eventInstance.keyCode || eventInstance.which;
if ((47 < key) && (key < 58) || key = 45 || key == 8) {
return true;
} else {
if (eventInstance.preventDefault)
eventInstance.preventDefault();
eventInstance.returnValue = false;
return false;
} //if
} //filterDigits
--></script>
</head>
<body>
<input type="text" onkeypress="filterDigits(event)"/>
</body>
</html>
注意你还必须允许#8(退格)。
在这种情况下,谢谢你的解决方案是你需要的,但是在这里看看这个JQuery插件http://code.google.com/p/jquery-ui-plugins/wiki/TextInput [ ^ ]因为它可能有用供将来参考。
如果您需要关于按键处理的更多详细信息,请链接h以及更多实施细节: [ ^ ]。
Sergey's solution is what you need in this case, but take also a look at this JQuery plugin here http://code.google.com/p/jquery-ui-plugins/wiki/TextInput[^] as it could be usefull for future references.
If you need more details on keypresses processing, this link has also some more implementation details: [^].