请大家帮忙用C#写个把一个八位二进制转换为十进制的程序

            int output = 0;
            input = textBox1.Text.Trim();
            char[] b = input.ToCharArray();
            for (int i = 0; i < b.Length; i++)
            {
                if (b[i] == '1')
                {
                    output += (int)Math.Pow(2,i);
                }
            }
            this.textBox2.Text = output.ToString();

可以，谢谢啊