C int和BYTE互轉、字串轉十六進位制位元組陣列
阿新 • • 發佈：2018-12-30
//int 轉 4位元組 BYTE[],
void intToByte(int i,BYTE abyte[])
{
abyte[3] = (byte)(0xff & i);
abyte[2] = (byte)((0xff00 & i) >> 8);
abyte[1] = (byte)((0xff0000 & i) >> 16);
abyte[0] = (byte)((0xff000000 & i) >> 24);
}
//4位元組 BYTE[] 轉 int
int bytesToInt(BYTE bytes[])
{
int addr = bytes[3] & 0xFF;
addr |= ((bytes[2] << 8) & 0xFF00);
addr |= ((bytes[1] << 16) & 0xFF0000);
addr |= ((bytes[0] << 24) & 0xFF000000);
//long int result = (x[0] << 24) + (x[1] << 16) + (x[2] << 8) + x[3];
return addr; } //字串 轉 十六進位制位元組陣列，返回陣列長度 int StrToByte(CString str, CByteArray &data) { BYTE byte[100]; int nlen = 0; int str_length = str.GetLength(); CString strTemp; // 字串轉換為 BYTE 型別 // sscanf(strTemp, "%02x", &int_temp); for (int i = 0; i < str_length; ) { strTemp = str.Mid(i, 2); int int_temp = 0; sscanf(strTemp, "%02x", &int_temp); byte[nlen] = (BYTE)int_temp; // data.Add(byte[nlen]); i += 3; nlen++; strTemp.ReleaseBuffer(); } data.SetSize(nlen); return nlen; } //累加和取反校驗
return addr; } //字串 轉 十六進位制位元組陣列，返回陣列長度 int StrToByte(CString str, CByteArray &data) { BYTE byte[100]; int nlen = 0; int str_length = str.GetLength(); CString strTemp; // 字串轉換為 BYTE 型別 // sscanf(strTemp, "%02x", &int_temp); for (int i = 0; i < str_length; ) { strTemp = str.Mid(i, 2); int int_temp = 0; sscanf(strTemp, "%02x", &int_temp); byte[nlen] = (BYTE)int_temp; // data.Add(byte[nlen]); i += 3; nlen++; strTemp.ReleaseBuffer(); } data.SetSize(nlen); return nlen; } //累加和取反校驗
UINT Check_Sum(UCHAR *data,UINT length)
{
UINT i;
UCHAR sum = 0;
for(i=1; i<length; i++)
{
sum += data[i];
}
data[length] = (~sum);
return data[length];
}