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<textarea name="w_List" rows="14" cols="70" onBlur="ChkList(this.value)">
名称1,密码1
名称2,密码2
名称3,密码3
</textarea>
function ChkList()
{
if(document.getElementById("w_List").value=="")
{
document.getElementById("w_List").innerHTML = "名称1,密码1<br>名称2,密码2<br>名称3,密码3";
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>textarea</title>
<script language="javascript">
function ChkList() {
if (document.getElementById("w_List").value == "") {
document.getElementById("w_List").value = "名称1,密码1\n名称2,密码2,名称3,密码3";
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<textarea id="w_List" name="w_List" rows="14" cols="70"></textarea>
</div>
<input type="button" value="Click" onclick="ChkList();" />
</form>
</body>
</html>
document.getElementById("w_List").value= "名称1,密码1<br>名称2,密码2<br>名称3,密码3";
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<textarea name="w_List" id="w_List" rows="14" cols="70" onblur="ChkList(this)">
名称1,密码1
名称2,密码2
名称3,密码3
</textarea>
<script type="text/javascript">
String.prototype.trim = function() {
return this.replace(/^\s+|\s+$/g,'');
}
function ChkList(obj)
{
if(obj.value.trim().length == 0)
{
obj.value = "名称1,密码1\r\n名称2,密码2\r\n名称3,密码3";
}
}
</script>
</body>
</html>
<textarea name="w_List" rows="14" cols="70" onBlur="ChkList(this.value)">
</textarea>
<script type="text/javascript">
function ChkList() {
if (document.getElementById("w_List").value == "") {
document.getElementById("w_List").value = "名称1,密码1\n名称2,密码2\n名称3,密码3";
}
}
</script>