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分享高手进，text光标定位问题
以下是测试代码，为什么点击textarea的时候正常，而text却提示“参数无效”呢？求大家帮看看，能不能改成对两者都有效的函数
<HTML><HEAD><TITLE>定位</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<SCRIPT language=JScript>
<!--
function savePos(textBox){
if(document.selection){
var range = document.selection.createRange();
if(range.parentElement().id == textBox.id){
var range_all = document.body.createTextRange();
range_all.moveToElementText(textBox);
for (start=0; range_all.compareEndPoints("StartToStart", range) < 0; start++)
range_all.moveStart('character', 1);
for (var i = 0; i <= start; i ++){
if (textBox.value.charAt(i) == '\n')
start++;
}
var range_all = document.body.createTextRange();
range_all.moveToElementText(textBox);
for (end = 0; range_all.compareEndPoints('StartToEnd', range) < 0; end ++)
range_all.moveStart('character', 1);
for (var i = 0; i <= end; i ++){
if (textBox.value.charAt(i) == '\n')
end ++;
}
}
}
}
//-->
</script>
<META content="MSHTML 5.00.2920.0" name=GENERATOR></HEAD>
<BODY oncontextmenu=window.event.returnValue=false>
<form name="myform" action="">
<textarea name="area" cols="35" rows="15"
onmouseup="savePos(this)"
onKeydown="savePos(this)"
onKeyup="savePos(this)"
onmousedown="savePos(this)"
onfocus="savePos(this)"></textarea>
<input type="text" name="textfield" size="35" onmouseup="savePos(this)"
onKeydown="savePos(this)"
onKeyup="savePos(this)"
onmousedown="savePos(this)"
onfocus="savePos(this)">
</form>
</BODY>
</HTML>
<HTML><HEAD><TITLE>定位</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<SCRIPT language=JScript>
<!--
function savePos(textBox){
if(document.selection){
var range = document.selection.createRange();
if(range.parentElement().id == textBox.id){
var range_all = document.body.createTextRange();
range_all.moveToElementText(textBox);
for (start=0; range_all.compareEndPoints("StartToStart", range) < 0; start++)
range_all.moveStart('character', 1);
for (var i = 0; i <= start; i ++){
if (textBox.value.charAt(i) == '\n')
start++;
}
var range_all = document.body.createTextRange();
range_all.moveToElementText(textBox);
for (end = 0; range_all.compareEndPoints('StartToEnd', range) < 0; end ++)
range_all.moveStart('character', 1);
for (var i = 0; i <= end; i ++){
if (textBox.value.charAt(i) == '\n')
end ++;
}
}
}
}
//-->
</script>
<META content="MSHTML 5.00.2920.0" name=GENERATOR></HEAD>
<BODY oncontextmenu=window.event.returnValue=false>
<form name="myform" action="">
<textarea name="area" cols="35" rows="15"
onmouseup="savePos(this)"
onKeydown="savePos(this)"
onKeyup="savePos(this)"
onmousedown="savePos(this)"
onfocus="savePos(this)"></textarea>
<input type="text" name="textfield" size="35" onmouseup="savePos(this)"
onKeydown="savePos(this)"
onKeyup="savePos(this)"
onmousedown="savePos(this)"
onfocus="savePos(this)">
</form>
</BODY>
</HTML>
...全文
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lawrendc 2008-10-10
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怎么我测试两个都无效呢
redondo520 2008-10-10
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谁来接分！！
redondo520 2007-03-12
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没人回答？
