为什么这个指针在C中是一个指针而不是引用？
有没有使用我错过的使用“this”作为一个比引用更有用的指针？
如果不是,有没有任何语言设计的含义/考虑作为一个指针？
解决方法
从
Bjarne Stroustrup’s C++ Style and Technique FAQ：
Why is “this” not a reference?
Because “this” was introduced into C++ (really into C with Classes) before references were added. Also,I chose “this” to follow Simula usage,rather than the (later) Smalltalk use of “self”.
