CPP

使用 std::cout 显示一行消息，std::endl 命令cout换行,作用就相当于\n ++i vs i++ ++i will increment the value of i, and then return the incremented value. 123i = 1;j = ++i;(i is 2, j is 2) i++ will…

We get to that point, c++, this chapter mainly introduce parts of c++, and understand them with many code example.