C# String和byte[]互相转换

单片机项目中用到一个有字库的显示屏,要做的是把上位机的字符发给单片机，并显示。

 

        public static string ToHexString(byte[] bytes) //byte转hexstring
        {
            string hexString = string.Empty;
            if (bytes != null)
            {
                StringBuilder strB = new StringBuilder();

                for (int i = 0; i < bytes.Length; i++)
                    strB.Append("0x" + bytes[i].ToString("X2") + (i < bytes.Length-1 ? "," : ""));
                hexString = strB.ToString();
            } return hexString;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string str1 = textBox1.Text;//获取输入框字符
            byte[] byteArray = System.Text.Encoding.Default.GetBytes(str1);//string转byte(char[])
            textBox1.Text = System.Text.Encoding.Default.GetString(byteArray);//byte(char[])转str
            MessageBox.Show(ToHexString(byteArray));//转hexstring显示
        }