c++程序编写运算符重构

Question

请补足Fraction类的成员函数（不能加数据成员）
#include
#include
#include
using namespace std;

class Fraction

{
private:
int _s, _m;
public:
void Print() { cout << _s << "/" << _m << endl; }
// 在此处补充你的代码
};

int main()
{
Fraction a;
a = "3/5"; a.Print();
a = "48/-72"; a.Print();
return 0;
}

输入
无

输出
3/5
-2/3

样例输入
无

样例输出
3/5
-2/3

不太懂字符串的调用和赋值运算符重构，求大佬帮帮忙

Answer 1

如果问题得到解决，请点下我回答左上角的采纳和向上的箭头

#include <iostream> 
#include <cstring> 
#include <cstdlib>
using namespace std;

class Fraction
{ 
private:
int _s, _m;
public:
void Print() { cout << _s << "/" << _m << endl; }
// 在此处补充你的代码
Fraction& operator=(char * s)
{
    _s = 0;
    _m = 0;
    int sng = 1;
    while (*s != '/')
    {
        if (*s == '-') { sng = -sng; s++; continue; }
        _s *= 10;
        _s += *s - '0';
        s++;
    }
    s++;
    while (*s != '\0')
    {
        if (*s == '-') { sng = -sng; s++; continue; }
        _m *= 10;
        _m += *s - '0';
        s++;
    }
    int gcd = _s > _m ? _m : _s;
    int i;
    for (i = gcd; i >= 1; i--)
        if (_s % i == 0 && _m % i == 0)
            break;
    gcd = i;
    _m /= gcd;
    _s /= gcd * sng;
    return *this;
}
};

int main() 
{
Fraction a;
a = "3/5"; a.Print();
a = "48/-72"; a.Print();
return 0;
}