代码如下：
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<!DOCTYPE html>
<
html
>
<
head
>
<
meta
charset
=
"UTF-8"
>
<
title
>实现JQuery限制输入框仅接受特殊字符的输入</
title
>
<
link
href
=
"css/style.css"
rel
=
"stylesheet"
>
<
script
src
=
"js/jquery-1.9.1.js"
type
=
"text/javascript"
></
script
>
</
head
>
<
body
>
<
div
class
=
"box"
>
<
h2
class
=
"h2-caption"
> 实现JQuery限制输入框仅接受特殊字符的输入</
h2
>
<
hr
><
br
>
<
p
>不允许输入特殊字符和空格：<
input
id
=
"code"
type
=
"text"
name
=
""
value
=
""
onkeypress
=
"return ValidateSpecialCharacter();"
onblur
=
"validate(this)"
></
p
>
<
p
>不允许输入空格：<
input
type
=
"text"
id
=
"dd"
name
=
""
value
=
""
onkeyup
=
"value=value.replace(/\s/g,'')"
></
p
>
</
div
>
<
script
type
=
"text/javascript"
>
function ValidateSpecialCharacter(){
var code;
if(document.all) { //判断是否是IE浏览器
code = window.event.keyCode;
}else{
code = arguments.callee.caller.arguments[0].which;
}
var character = String.fromCharCode(code);
var txt=new RegExp("[ ,\\`,\\~,\\!,\\@,\#,\\$,\\%,\\^,\\+,\\*,\\&,\\\\,\\/,\\?,\\|,\\:,\\.,\\<,\\>,\\{,\},\\(,\\),\\'',\\;,\\=,\"]");
//特殊字符正则表达式
if(txt.test(character)){
if(document.all){
window.event.returnValue = false;
}else{
arguments.callee.caller.arguments[0].preventDefault();
}
}
}
// 验证中文字符和特殊字符
function chineseVaildate(value){
if(value == null || value=="")
return true;
if((/[\u4E00-\u9FA5]+/.test(value))){
return false;
}
return true;
}
function validate(obj){
if(!chineseVaildate(obj.value)){
alert("有特殊字符和中文字符");
}
}
</
script
>
</
body
>
</
html
>
</
html
>
|
效果图如下：
