Dynamic construction variable using macro
Using macro predetermined in C / C is a very good choice, especially with ##, and the function is more powerful. See example first:
#include "stdio.h" #define convar (Head, INDEX) Head ## ion index
INT main () {int A1 = 3; convaR (A, 1) = 4; Printf ("% D", A1); scanf ("% D", A1); RETURN 0;}
With DEFINE and ##, two symbols can be connected to dynamically form variables.
