1.字符串类型浮点数转float类型
string strNumber = "71.068";
float floatNumber =float.Parse(strNumber); //输出floatNumber =71.068
2.浮点数转4个字节(float类型),double默认转8个字节
float floatNumber = 71.068f;
byte[] result = BitConverter.GetBytes(floatNumber);//float浮点数默认转为4个字节,double默认转8个字节
Array.Reverse(result); //数组元素翻转