*******如何限制文本框只能输入数字?********

[wlily875]

如题

[wangxj0600]

http://expert.csdn.net/Expert/topic/1519/1519504.xml?temp=.7907678
<input onpropertychange="if(/\D/.test(value))value=value.replace(/\D/g,'');">
by qiushuiwuhen

[fenglingr]

// ================================================================
// 本函数用于限制文本输入框中只能输入数字"0"到"9",".","-"
// ================================================================
function JHshNumberText()
{
if ( !(((window.event.keyCode >= 48) && (window.event.keyCode <= 57))
|| (window.event.keyCode == 13) || (window.event.keyCode == 46)
|| (window.event.keyCode == 45)))
{
window.event.keyCode = 0 ;
}
}

[zxhong]

1.只能输入数字和英文的：
<input onkeyup="value=value.replace(/[\W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">
2.只能输入数字的：
<input onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">
3.只能输入全角的：
<input onkeyup="value=value.replace(/[^\uFF00-\uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\uFF00-\uFFFF]/g,''))">
4.只能输入汉字的：
<input onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,''))">

[fason]

都说完没我份了,我一直是用这个的
<input onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))">

[hanfey]

learning