C++ 后置运算符重载 180P
2013-01-26 12:28
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参考范磊老师<<零起点学通C++>> 180P
result:
num(1)
num(2)
num()
--------------------
operator +
num(3)
~num()
++++++++++++++++++++
one : 1
two : 2
three : 3
~num()
~num()
~num()
#include <iostream> using namespace std; class num { public: num(){n = 0;cout<<"num()"<<endl;} num(int i){n = i;cout<<"num("<<i<<")"<<endl;} num(const num &m){cout<<"num(&)"<<endl;n = m.n;} ~num(){cout<<"~num()"<<endl;} int get()const{return n;} num operator+(num &r){ cout<<"operator +"<<endl;return num(n+r.get());} private: int n; }; int main() { num one(1),two(2),three; cout<<"--------------------"<<endl; three = one + two; cout<<"++++++++++++++++++++"<<endl; cout<<" one : "<<one.get()<<endl; cout<<" two : "<<two.get()<<endl; cout<<" three : "<<three.get()<<endl; return 0; }
result:
num(1)
num(2)
num()
--------------------
operator +
num(3)
~num()
++++++++++++++++++++
one : 1
two : 2
three : 3
~num()
~num()
~num()
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