<input id=a1 value="含有中文">
<input type=button value=Check onclick=checkit()>
<script>
function checkit(){
str = document.all.a1.value;
re = /[\u4E00-\u9FA0]/;
if (re.test(str))
{
alert("The text input included chinese!");
}
}
</script>
<input type=button value=Check onclick=checkit()>
<script>
function checkit(){
str = document.all.a1.value;
re = /[\u4E00-\u9FA0]/;
if (re.test(str))
{
alert("The text input included chinese!");
}
}
</script>
function checkChinese(){
var pattern = /[\u4E00-\u9FA0]+/;
if (!pattern.test(formname.fieldname.value))
{
alert("只能够输入中文!");
return false;
}
}
</script><form method="post" name='formname' onsubmit="return checkChinese();">
<input type="text" name="fieldname">
<input type="submit" name="submit" value="确定">
</form>
function b()
{
var k = window.event.keyCode;
if (k < 255){
alert("你输入的不是汉字!");
window.event.keyCode = 0 ;}
}
</script>
<input type="text" name="t" onblur="checkChinese(this.value);">
<script>
function checkChinese(str)
{
var reg = /^[\u4E00-\u9FA5]+$/;
if(arr=str.match(reg))
{
return true;
}
else
{
alert("输入串为空或不全是汉字");
return false;
}
}
</script>
function checkChinese(str)
{
var reg = /^[\u4E00-\u9FA5]+$/;
if(tmp=str.match(reg))
{
return true;
}
else
{
alert("输入串为空或不全是汉字");
return false;
}
}