C++的引用字符&，学C++的朋友想必对其都有所了解。今天本人对其在机码层做一下剖析，随后附上一个在程序中修改c++引用的小技巧（大部分书中叙述引用初始化后不能修改）。-C++ reference to the character & , learning C++ must have their friends have to understand. Today I have to do their bit in the machine code level analysis, and then accompanied by a change in the program refer to the small c++ skills (most of the references described in the book can not be changed after initialization.)