define连接字符串
-
define conn(x,y) x##y,连接x与y
-
define toString(x) #x,将x变成字符串
#include <stdio.h>
#define conn(x,y) x##y
#define toChar(x) #x
int
main(void)
{
int a = conn(123,234);
char* b = toChar(1);
printf("%d", a);
printf("%c", *b);
return 0;
}