char数组转音频,语言数组交换

本质还是内存的拷贝，可以直接用memcpy

void FloatToChar(float fNum, unsigned char *strBuf, int nLen) {
  if (nLen < 4)
    return;
  int i = 0;
  unsigned char nTmp;
  char *p = (char *)&fNum;
  for (i = 0; i < 4; i++) {
    strBuf[i] = *p;
    p++;
  }
}

void CharToFloat(float *fNum, unsigned char *strBuf, int nLen) {
  if (nLen < 4)
    return;
  int i = 0;
  unsigned char nTmp;
  char *p = (char *)fNum;
  for (i = 0; i < 4; i++) {
    *p = strBuf[i];
    p++;
  }
}