/* ********************************************************************** */
// ?int?a2i(const?char?*s)?函數原形?
 // 功能:?把s所指向的字符串轉換成int類型;
 // 返回值：字符串的轉換值。
 //
// ?double?a2f(const?char?*s)?函數原形?
 // 功能:?把s所指向的字符串轉換成double類型;
 // 返回值：字符串的轉換值。
/* ********************************************************************** */

int ?a2i( const ? char ? * s)
 {

???? int ?sign = 1 ,num = 0 ;?
???? if ( * s == ' - ' )
????????sign =- 1 ;
???? else ? if ( * s == ' + ' )
????????sign = 1 ;
????s ++ ;

???? while (( * s) != ' \0 ' )
???? {
????????num = num * 10 + ( * s - ' 0 ' );
????????s ++ ;
????} ????
???? return ?num * sign;
}

double ?a2f( const ? char ? * s)
 {
???? bool ?bDot = false ;
???? double ?result = 0 ;
???? int ?sign = 1 ;
???? if ?( * s == ' - ' )
???? {
????????sign =- 1 ;
????}
???? else ? if ( * s == ' + ' )
???? {
????????sign = 1 ;
????}
????s ++ ;
????
???? double ?temp = 1 ;

???? while ?(( * s) != ' \0 ' )
???? {
???????? if ( * s == ' . ' )
???????? {bDot = true ;s ++ ;}


???????? if ?( ! bDot)
???????? {
????????????result = result * 10 + ( * s - ' 0 ' );
????????}
???????? else
???????? {
????????????temp *= 10 ;
????????????result = result + ( * s - ' 0 ' ) / temp;
????????}
????????s ++ ;
????}

???? return ?sign * result;

}