c#进制数据转换、位操作、字节数组转换浮点数

来自链接 https://bbs.csdn.net/topics/380229242，https://blog.csdn.net/kjlrzzyffmx/article/details/49053931#commentsedit

1.浮点数转换成字节数组

private void button1_Click(object sender, EventArgs e)
{
    float l_value = 10.1f;
    l_value = Convert.ToSingle(l_value);
    byte[] l_bytes = BitConverter.GetBytes(l_value);
    for (int i = 0; i < l_bytes.Length; i++)
    {
        Console.WriteLine("{0}", l_bytes[i]);
    }
}

2.字节数组转换成浮点数

private void button2_Click(object sender, EventArgs e)
{
    float l_value;
    byte[] l_bytes = new byte[4];
    l_bytes[0] = 0x9A;
    l_bytes[1] = 0x99;
    l_bytes[2] = 0x21;
    l_bytes[3] = 0x41;
    l_value = BitConverter.ToSingle(l_bytes, 0);
    Console.WriteLine("{0:0.000}", l_value);
}

3.数值转换成2进制字符串

private void button3_Click(object sender, EventArgs e)
{
    byte l_value = 3;
    string l_bin = Convert.ToString(l_value, 2).PadLeft(8, '0');
    Console.WriteLine("{0}", l_bin);
}

4.取余与整除

private void button4_Click(object sender, EventArgs e)
{
    Int16 l_value = 5;
    Int16 l_value1 = 0;
    Int16 l_value2 = 0;
    //求余数
    l_value1 = (Int16)(l_value % 2);
    //整除运算,除数与被除数为整数.
    l_value2 = (Int16)(l_value / 2);
    Console.WriteLine("{0}", l_value1);
    Console.WriteLine("{0}", l_value2);
}

5.进制互转(2进制，10进制，16进制)，来自链接 https://blog.csdn.net/kuui_chiu/article/details/80579940

int d = 10;
 
//十进制转二进制字符串
 Console.WriteLine(Convert.ToString(d,2));
//输出: 1010
 
 
//十进制转十六进制字符串
Console.WriteLine(Convert.ToString(d,16));
//输出: a
 
 
//二进制字符串转十进制数
string bin = "1010";
Console.WriteLine(Convert.ToInt32(bin,2));
//输出: 10
 
 
//二进制字符串转十六进制数
string bin = "1010";
Console.WriteLine(string.Format("{0:x}",Convert.ToInt32(bin,2));
//输出: a
 
 
//十六进制转二进制字符串
Console.WriteLine(Convert.ToString(0xa,2));
//输出: 1010
 
//MessageBox.Show(Convert.ToInt32(txtDaiZhuan.Text, 16).ToString()); //16进制转十进制
//十六进制转十进制数
Console.WriteLine(Convert.ToString(0xa,10));
//输出: 10

6.位操作符

位逻辑与运算符 &

位逻辑或运算符 |

位逻辑非运算符 ~

位逻辑异或运算符 ^

位左移运算符 <<

位右移运算符 >>