<html> <head><title>换行</title> <script language="javascript"> function up(obj) { var regu =/^[\d]{1}[\w-#]{0,}[\d]{1}$/; var re = new RegExp(regu); if (re.test(obj)) { alert("ture"); return true; }else{ alert("false"); return false; } }</script> </head><body> <input onchange="up(this.value)"> </body> </html>
<html> <head><title>换行</title> <script language="javascript"> function up(obj) {
if(obj.length==1){ var regu =/^[\d]$/; var re = new RegExp(regu); if (re.test(obj)) { alert("ture"); return true; }else{ alert("false"); return false; }}else{ var regu =/^[\d]{1}[\w-#]{0,}[\d]{1}$/; var re = new RegExp(regu); if (re.test(obj)) { alert("ture"); return true; }else{ alert("false"); return false; } } }</script> </head><body> <input onchange="up(this.value)"> </body> </html>
<html>
<head><title>换行</title>
<script language="javascript">
function up(obj)
{
var regu =/^[\d]{1}[\w-#]{0,}[\d]{1}$/;
var re = new RegExp(regu);
if (re.test(obj)) {
alert("ture");
return true;
}else{
alert("false");
return false;
}
}</script>
</head><body>
<input onchange="up(this.value)">
</body>
</html>
<html>
<head><title>换行</title>
<script language="javascript">
function up(obj)
{
if(obj.length==1){
var regu =/^[\d]$/;
var re = new RegExp(regu);
if (re.test(obj)) {
alert("ture");
return true;
}else{
alert("false");
return false;
}}else{
var regu =/^[\d]{1}[\w-#]{0,}[\d]{1}$/;
var re = new RegExp(regu);
if (re.test(obj)) {
alert("ture");
return true;
}else{
alert("false");
return false;
}
}
}</script>
</head><body>
<input onchange="up(this.value)">
</body>
</html>