转换函数的实现.txt

这是我们这学期老师的COBRA的讲义

float Convert(char *argv)
{
	char *single;
	float num1=0,num2=0,result=0,result1=0,result2=0;
	int dot=0,count=0;
	single=argv;
	int i=0;
	while(single[i]!='\0')
	{
		if(dot==0)
		{
			if(single[i]!='.')
			{
				num1=int(single[i])-48;
				result1=result1*10+num1;
			}
			else
			{
				dot=1;
			}
		}
		if(dot==1)
		{
			if(single[i]!='.')
			{
				num2=int(single[i])-48;
				result2=result2*10+num2;
				count++;
			}
		}
		i++;
	}
	result=result1+result2*pow(10,(-count));	
	return result;
}