onlyNum()，onlyAlpha()和onlyNumAlpha()3个Jquery扩展方法
number.js
// ----------------------------------------------------------------------
//
// 限制只能输入数字
//
// ----------------------------------------------------------------------
$.fn.onlyNum = function () {
$(this).keypress(function (event) {
var eventObj = event || e;
var keyCode = eventObj.keyCode || eventObj.which;
if ((keyCode >= 48 && keyCode
return true;
else
return false;
}).focus(function () {
//禁用输入法
this.style.imeMode = 'disabled';
}).bind("paste", function () {
//获取剪切板的内容
var clipboard = window.clipboardData.getData("Text");
if (/^\d+$/.test(clipboard))
return true;
else
return false;
});
};
letter.js
// ----------------------------------------------------------------------
//
// 限制只能输入字母
//
// ----------------------------------------------------------------------
$.fn.onlyAlpha = function () {
$(this).keypress(function (event) {
var eventObj = event || e;
var keyCode = eventObj.keyCode || eventObj.which;
if ((keyCode >= 65 && keyCode = 97 && keyCode
return true;
else
return false;
}).focus(function () {
this.style.imeMode = 'disabled';
}).bind("paste", function () {
var clipboard = window.clipboardData.getData("Text");
if (/^[a-zA-Z]+$/.test(clipboard))
return true;
else
return false;
});
};
number_letter.js
// ----------------------------------------------------------------------
//
// 限制只能输入数字和字母
//
// ----------------------------------------------------------------------
$.fn.onlyNumAlpha = function () {
$(this).keypress(function (event) {
var eventObj = event || e;
var keyCode = eventObj.keyCode || eventObj.which;
if ((keyCode >= 48 && keyCode = 65 && keyCode = 97 && keyCode
return true;
else
return false;
}).focus(function () {
this.style.imeMode = 'disabled';
}).bind("paste", function () {
var clipboard = window.clipboardData.getData("Text");
if (/^(\d|[a-zA-Z])+$/.test(clipboard))
return true;
else
return false;
});
};
use.js
$(function () {
// 限制使用了onlyNum类样式的控件只能输入数字
$(".onlyNum").onlyNum();
//限制使用了onlyAlpha类样式的控件只能输入字母
$(".onlyAlpha").onlyAlpha();
// 限制使用了onlyNumAlpha类样式的控件只能输入数字和字母
$(".onlyNumAlpha").onlyNumAlpha();
以上方法均可实现项目要求，大家根据自己的具体需求自由选择吧
Statement：The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
