说明： Koenig查找（ADL）简析
ADL，参数相关查找，也称作为Koenig查找（以Andrew Koenig的名字命名），
是指在编译器对无限定域的函数调用进行名字查找时，所应用的一种查找规则。 (Koenig Find (ADL) Analysis of ADL, the parameters related to search, also known as Koenig find (in the name of Andrew Koenig), is the compiler of the infinite set of function calls for the domain name lookup, the application of a Find rules.)
