[嵌入式]SMT8单片机，float to char *

网上的都是没有用的，没办法，只能自己手撸一个：

void myPrintf222(float fVal_In,char *pchar)
{
char result[arrLen]={0};
int decVal;
float dotNum;

decVal = fVal_In;
dotNum= fVal_In-decVal;

int nums=0;

for(int i=0;i< 20;i++)
{
  if(decVal>=100000)
  {
    int tempval= decVal/100000;
    decVal-=100000*tempval;
    result[nums]=tempval+48;
    nums++;
  }
  else if(decVal>=10000)
  {
    int tempval= decVal/10000;
    decVal-=10000*tempval;
    result[nums]=tempval+48;
    nums++;
  }
  else if(decVal>=1000)
  {
    int tempval= decVal/1000;
    decVal-=1000*tempval;
    result[nums]=tempval+48;
    nums++;
  }  
  else if(decVal>=100)
  {
    int tempval= decVal/100;
    decVal-=100*tempval;
    result[nums]=tempval+48;
    nums++;
  }  
  else if(decVal>=10)
  {
    int tempval= decVal/10;
    decVal-=10*tempval;
    result[nums]=tempval+48;
    nums++;
  }  
  else if(decVal>=1)
  {
    int tempval= decVal;
    decVal-=1*tempval;
    result[nums]=tempval+48;
    nums++;
    break;
  }
}

#if 0
if(dotNum>=0.00001)
{
result[nums]=46;
nums++;
}

for(int k=0;k<5;k++)
{
      if(dotNum>=0.1)
  {
    int tempval= dotNum*10;
    dotNum= dotNum*10-tempval;
    result[nums]=tempval+48;
    nums++;
  }
}

#endif

#if 1

          if(dotNum>=0.1)
  {
    int tempval= dotNum*10;
    dotNum= dotNum*10-tempval;
    result[nums]=tempval+48;
    nums++;
  }

#endif

memcpy(pchar,result,strlen(result) );
printf(result);

}