第一篇博客：Hello world

第一篇博客：Hello World

#include <iostream>

int main() {

    std::cout<<"Hello world!"<<std::endl;

    return 0;

}

 

Know what you want to say.

Practice. Imitate good writing.

Prefer standard-library facilities to locally developed code.

Don't use malloc(). The new operator does the same job better, and instead of realloc(), try a vector.

Don't introduce a name until you have a suitable value for it.

Use constructor/destructor pairs to simplify resource management.

Use containers and algorithms rather than built-in arrays and ad hoc code.

Recommand the standard-library vector as the default type for sequences of elements: you need a reason to choose another.

Choose names to reflect the meaning of an entity rather than its implementation.