[C]程式語言技巧

1.大量資料整理,可用陣列搭配for迴圈做存取,可用define方式標明每個陣列的確切名稱.
#define a  0
#define b  1
#define c  2
#define d  3
#define e  4



value[a] = 0;
value[b] = 0;
value[c] = 0;
value[d] = 0;
value[e] = 0;

或建立兩個陣列來對照名稱
name[0] = "a";
name[1] = "b";
name[2] = "c";
name[3] = "d";
name[4] = "e";
     
value[0] = 0;
value[1] = 0;
value[2] = 0;
value[3] = 0;
value[4] = 0;


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2.function pointer
void *a :可存放任何資料型態的地址

void functionA(int a);
void *b = functionA;

所以 functionA(c); = b(c);