定义一个有理数类，属性有分子、分母 用成员函数重载 == 重载前缀++ 后缀++ (member function 或 friend function 均可 ) 重载 >> << 自己写 main 对有理数类进行测试 -Define a rational number class, property has numerator, denominator == overloaded with members of the function ov

1、用成员函数重载运算符，使对整型的运算符=、+、-、*、/ 适用于分数运算。要求： （1）输出结果是最简分数（可以是带分数）； （2）分母为1，只输出分子。-1, with member functions operator overloading, so that the operator on the integer =,+,-,*,/ apply to scores of computing. Requirements: (1) output is the most simple