写一窜简单的代码

int a = 5; float b = 3.14; string c = "Hello World"; bool d = true;

// 输出变量的值 cout << "a的值为：" << a << endl; cout << "b的值为：" << b << endl; cout << "c的值为：" << c << endl; cout << "d的值为：" << d << endl;

// 修改变量的值 a = 10; b = 2.718; c = "你好，世界"; d = false;

// 再次输出变量的值 cout << "a的值为：" << a << endl; cout << "b的值为：" << b << endl; cout << "c的值为：" << c << endl; cout << "d的值为：" << d << endl;