从C 转向C++ 对每个人来说，习惯C++需要一些时间，对于已经熟悉C 的程序员来说， 这个过程尤其令人苦恼。因为C 是C++的子集，所有的C 的技术都可以继续使 用，但很多用起来又不太合适。例如，C++程序员会认为指针的指针看起来很 古怪，他们会问：为什么不用指针的引用来代替呢？-from C to C for everyone, C habits need some time, already familiar with C programmers, this process particularly vexing. Because C is a subset of C, all the C's technology can continue to use, but many also use up less suitable. For example, the C programmer will pointer that seemed very strange, they would ask : Why not use the pointer to replace?