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一个支付页面，用户只能输入. 和数字，keypress事件和电脑端的通用吗？这串代码 在手机端可用吗？兼容安卓和苹果 ，可有原生方法？$('.fuck').keypress(function(event) {
var eventObj = event || e; var keyCode = eventObj.keyCode || eventObj.which; if ((keyCode ？？？)) return true; else return false; })
光阴似箭催人老，日月如移越少年。
这就是原生事件 通用的参考是否可用：http://caniuse.com/#search=ke...ASCII码对照表：http://tool.oschina.net/commo...
document.querySelector('#answerEditor').addEventListener('keypress', e => { var eve = e || event; var code = eve.keyCode; if(code != 46 && !(code >= 48 && code <=59)) { eve.returnValue = false; return false; } });
type="num"
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
这就是原生事件 通用的
参考是否可用：http://caniuse.com/#search=ke...
ASCII码对照表：http://tool.oschina.net/commo...
type="num"