金额字段加千位分隔符

来源：互联网发布：国际营养配餐软件编辑：程序博客网时间：2024/05/16 14:45

/*========================================================================
=给金额字段加千位分隔符                                                  =
========================================================================*/
char * PAddFloatComma(double dIn, char *sOut)
{
    int i, j, iLen, iPreLen;
    char    sBuf[20];
    unsigned char cNgFg;    /* Negative flag */

    PLog1(__FILE__, __LINE__, "dIn[%lf]",dIn);
    if(-0.001 < dIn && dIn < 0.001)
    {
        sOut[0] = '0';
        sOut[1] = '.';
        sOut[2] = '0';
        sOut[3] = '0';
        sOut[4] = 0;
        return sOut;
    }
    if(dIn > 999999999999999.99 || dIn < -999999999999999.99)
    {
        return NULL;
    }

    if(dIn < -0.001)
    {
        cNgFg = 1;          /* set negative flag */
    }
    else
    {
        cNgFg = 0;
    }
    sprintf(sBuf, "%-15.2f", dIn); /* format "%-15.2f" can be changed */
    iLen = strlen(TruncStr(sBuf)); /* get strlen of after truncated spaces */
    for(i = 0; i < iLen; i ++)
    {
        if(sBuf[i] == '.')
        {
            break;
        }
    }
    iPreLen = i;                    /* get zhiyeeix changdth of "." */

    for(i = 0, j = 0; i < iPreLen; i ++, j ++)
    {
        sOut[j] = sBuf[i];
        if(!i && cNgFg)
        {
            continue;
        }
        if(((iPreLen - i) % 3) == 1 && (iPreLen - i) > 1)
        {
            sOut[++j] = ',';
        }
    }

    for( ; i <= iLen; i ++, j ++)
    {
        sOut[j] = sBuf[i];
    }

return sOut;
}