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C++类成员访问操作符重载
#include <iostream> #include <vector> using namespace std; // Consider an actual class. class Obj {
C++指针与数组
#include <iostream> using namespace std; const int MAX = 3; int main () { intvar[MAX] = {10, 100, 200};
C++条件? : 运算符
#include <iostream> using namespace std; int main () { // Local variable declaration: int x, y = 10;
C++对象的动态内存分配
#include <iostream> using namespace std; class Box { public: Box() { cout << "Constructor called!" <<endl;
C++捕捉异常
#include <iostream> using namespace std; double division(int a, int b) { if( b == 0 ) { throw "Division by zero condition!";
C++ C风格字符串
#include <iostream> using namespace std; int main () { char greeting[6] = {'H', 'e', 'l', 'l', 'o', '\\0'};
C++以null结尾的字符串
#include <iostream> #include <cstring> using namespace std; int main () { char str1[10] = "Hello";
C++变量地址
#include <iostream> using namespace std; int main () { intvar1; char var2[10]; cout << "Address of var1 variable: ";
C++使用tm结构格式化时间
#include <iostream> #include <ctime> using namespace std; int main() { // current date/time based on current system
C++默认值
#include <iostream> using namespace std; int sum(int a, int b = 20) { int result; result = a + b; return (result);
C++ concat()函数
// ------------- #include <iostream> using namespace std; #define concat(a, b) a ## b int main() { int xy = 100;
C++预定义的宏
// #include <iostream> using namespace std; int main () { cout << "Value of __LINE__ : " << __LINE__ << endl;