int strspn(const char* string,const char* strCharSet)
{
	int i;
	const char* temp;
	i=0;
	while (*string!='\0')
	{
		temp=strCharSet;
		while (temp!='\0')
		{
			if (*temp==*string)
				break;
		}	
		if (temp=='\0')
			break;
		*string++;
		i++;
	}
	return i;
}
