<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title></head><body><script type="text/javascript">function getEvent() {if (document.all) {return window.event;}func = getEvent.caller;while (func != null) {var arg0 = func.arguments[0];if (arg0) {if ((arg0.constructor == Event || arg0.constructor == MouseEvent) || (typeof (arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)) {return arg0;}}func = func.caller;}return null;}function doit(){var ev = getEvent();var bool = query(ev.keyCode);if (bool) {return false;}}function query(_val) {var allow = monitor.number_a + "," + monitor.number_b + "," + monitor.backspace;var rs = allow.split(",");for (var i = 0; i < rs.length; i++) {var val = Number(rs[i]);if (_val == val) {return false;}}return true;}var monitor = {string:"81,87,69,82,84,89,85,73,79,80,65,83,68,70,71,72,74,75,76,90,88,67,86,66,78,77",number_a:"48,49,50,51,52,53,54,55,56,57",number_b:"96,97,98,99,100,101,102,103,104,105,",backspace:"8",/*退格*/spot:"190,110"/*点如（.）*/} </script><input type="text" id="txt" οnkeydοwn="return doit()"></body></html>
以上尚未完善
/*** [digitOnly 文本框限制只能输入数字]* @param {[type]} a [event]* οnkeypress="digitOnly(event)" οnkeyup="value=value.replace(/[^0-9]/g,'')" οnchange="value=value.replace(/[^0-9]/g,'')"*/function digitOnly(a) {48 <= a.keyCode && 57 >= a.keyCode || 45 == a.keyCode || (a.returnValue = !1)}
过滤内容，可兼容
var ban = {input: function (options) {var settings = jQuery.extend({this: null,allow: keyboard.getMonitor.number_a + "," + keyboard.getMonitor.number_b + "," + keyboard.getMonitor.backspace,}, options);options = settings;var ev = keyboard.getEvent();console.log(ev.keyCode)var bool = bool_result(ev.keyCode);if (bool) {return false;}function bool_result(_val) {var allow = settings.allow;var rs = allow.split(",");for (var i = 0; i < rs.length; i++) {var val = Number(rs[i]);if (_val == val) {return false;}}return true;}}}var keyboard = {getEvent: function () {if (document.all) {return window.event;}func = getEvent.caller;while (func != null) {var arg0 = func.arguments[0];if (arg0) {if ((arg0.constructor == Event || arg0.constructor == MouseEvent) || (typeof (arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)) {return arg0;}}func = func.caller;}return null;},getMonitor: {string: "81,87,69,82,84,89,85,73,79,80,65,83,68,70,71,72,74,75,76,90,88,67,86,66,78,77",number_a: "48,49,50,51,52,53,54,55,56,57",number_b: "96,97,98,99,100,101,102,103,104,105,",backspace: "8",/*退格*/spot: "190,110"/*点如（.）*/}}
function baninput() {$("input[data-tyle='number']").bind('keyup', function () {var val = $(this).val();$(this).val(val.replace(/[^0-9]/g, ''));}).change(function () {var val = $(this).val();$(this).val(val.replace(/[^0-9]/g, ''));});var ev = getEvent();var bool = bool_result(ev.keyCode);if (bool) {return false;}function bool_result(_val) {var allow = "48,49,50,51,52,53,54,55,56,57,96,97,98,99,100,101,102,103,104,105,8";var rs = allow.split(",");for (var i = 0; i < rs.length; i++) {var val = Number(rs[i]);if (_val == val) {return false;}}return true;}function getEvent() {if (document.all) {return window.event;}func = getEvent.caller;while (func != null) {var arg0 = func.arguments[0];if (arg0) {if ((arg0.constructor == Event || arg0.constructor == MouseEvent) || (typeof (arg0) == "object" && arg0.preventDefault && arg0.stopPropagation)) {return arg0;}}func = func.caller;}return null;}}
