匆匆那年的专栏

学习C++类对象  运算重载符 用来记录我学习的过程。。 #include using namespace std; class complex { private: double real, imag; public: complex ( double i = 0.0, double j =0.0) { real = i; imag = j; } complex ope

#include using namespace std; class point { private: float real, imag; public: point ( float a = 0, float b = 0) { real = a; imag = b; } void print () { cout<<real<<" "<<imag<<endl; }

#include using namespace std; class demo { private: char * sz; int len; public: demo (int l = 0 ) // { len = l; sz = new char [len]; //分配内存 } ~demo() { delete [] sz;

explicit构造函数的作用 解析： explicit构造函数是用来防止隐式转换的。请看下面的代码： class Test1 { public: Test1(int n) { num = n; } //普通构造函数 private: int num; }; class Test2 { public: explicit Test2(int n) { num = n; } //explicit(显式

#include using namespace std; class test1 { private: int x; public: explicit test1 ( int num) { x = num; } void print() { cout<<x<<endl; } test1 operator << ( test1 p ); }; test1 test1

#include using namespace std; class A { private: int x; public: A ( int a = 0) { cout<<"A的构造函数被调用"<<endl; x = a; } void print() { cout<<x<<endl; } }; class B { public

#include using namespace std; class B { private: int x; public: B ( int a = 0) { cout<<"B的构造函数被调用"<<endl; x = a; } ~B () { cout<<"B的析构函数被调用"<<endl; } void print() {

#include using namespace std; class A { private: int x; public: A ( int a = 0 ) { cout<<"A的构造函数被调用"<<endl; x = a; } ~A () { cout<<"A的析构函数被调用"<<endl; } }; class B :virtu

#include using namespace std; class eye { public: void look (void) { } //看 }; class nouse { public: void smell (void) { } //闻 }; class mouth { public: void eat (void ) { } //吃 }; class