//设置textbox每行最多显示固定个字符
        public static void SetTextBoxColumn(TextBox textBox1, int charCount)
        {
            try
            {
                for (int i = 0; i < textBox1.Lines.Length; i++)
                {
                    if (textBox1.Lines[i].Length > charCount)
                    {
                        int firstCharIndex = textBox1.GetFirstCharIndexFromLine(i);
                        string str = textBox1.Lines[i];
                        textBox1.Text = textBox1.Text.Insert(firstCharIndex + charCount, "\r\n");

                    }
                }
            }
            catch { }
        }