日期:2014-05-16 浏览次数:20485 次
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<textarea id="ta"></textarea>
<input type="button" value="点击" onclick="a()">
</body>
<script>
function setCaretPosition(tObj, sPos){
if(tObj.setSelectionRange){
setTimeout(function(){
tObj.setSelectionRange(sPos, sPos);
tObj.focus();
}, 0);
}else if(tObj.createTextRange){
var rng = tObj.createTextRange();
rng.move('character', sPos);
rng.select();
}
}
function a(){
var oText=document.getElementById("ta");
oText.value='12345';
setCaretPosition(oText,oText.value.length);
}
</script>
</html>