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#include <stdio.h>
#include <string.h>
//ÕâÒ»¾äÒ»¶¨ÒªÓÐ,ÕâÊǵ¼³ö¸Ãº¯Êý
extern "C" void add(); 
void add()
{
printf("@hk.%s(%d): This is add function! \n", __FILE__, __LINE__);
}
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============== ......
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