/// <summary>
/// 截断字符串(中文计一个字符宽度，其它计半个字符宽度)
/// </summary>
/// <param name="input">需截断的字符串</param>
/// <param name="length">字符宽度</param>
/// <returns>截断字符串(带"...")</returns>
protected string truncatedChars(string input, int length)
{
input = Server.HtmlEncode(input);
if (input.Length > length)
{
int pos = 0;
string result = "";
foreach (char chr in input)
{
if (Regex.IsMatch(chr.ToString(), "[^\x00-\xff]"))
{
pos += 2;
}
else
{
pos += 1;
}
result += chr.To
