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指定选取textarea的特定行(2) var right = rect[num].right; var range = getTextRange(num - 1, areaId);
range.moveStart("character",range.text.length + 1);
while(range.offsetLeft + range.boundingWidth < right)
{
range.expand("character");
}
if(range.offsetLeft > left)
range.moveStart("character",-1);
return range;
}
} function getText(num)
{
var range = getTextRange(num,"area")
if(range != null)
{
alert(range.text);
range.select();
}
}
</SCRIPT>
</HEAD> <BODY>
<TEXTAREA cols="50" rows="10" id="area">
vsdasdasu
fsdasdasiaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
bsdasdasd
</TEXTAREA><p> <input type="button" onClick="getText(0)" value="选第一行">
<input type="button" onClick="getText(1)" value="选第二行">
<input type="button" onClick="getText(2)" value="选第三行">
<input type="button" onClick="getText(3)" value="选第四行">
</BODY>
</HTML>
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