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function noNumbers(e) {
var keynum;
var keychar;
keynum = window.event ? e.keyCode : e.which;
keychar = String.fromCharCode(keynum);
alert(keynum + ':' + keychar);
}
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↑上面代码改变,会自动显示代码结果 jQuery调用版本:2.1.4
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获取用户按下的键

获取用户按下的键

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