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  public string Abbreviation(string str)
        {
            if (str == null)
            {
                return null;
            }
            int strWidth = FontWidth(txtName.Font, txtName, str);
            //»ñÈ¡label×¿ÉÒÔÏÔʾ¶àÉÙ×Ö·û
            int len = label.Width * str.Length / strWidth;
            if (len > 3 && len < str.Length)
            {
                return str.Substring(0, len - 3) + "...";
            }
            else
            {
                return str;
            }
        }
        /// <summary>
        /// »ñÈ¡×Ö·û´®ÔÚ fontʱµÄ³¤¶È
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        private int FontWidth(Font font, Control control, s


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using System.IO;
using System.text;
 
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