#include<stdio.h>

#include<stdarg.h>

#include<string.h>

const char * g_path = "/home/exbot/wangqinghe/log.txt";

#define LOG(fmt,...) my_fprintf(__FILE__,__FUNCTION__,__LINE__,fmt,##__VA_ARGS__)

int my_fprintf(const char *pFileName,const char *pFunName,const long lLine,const char* fmt,...)

{

    printf("%s-%s-%d\n",__FILE__,__FUNCTION__,__LINE__);

    int iRet = -;

    int i = ;

    va_list args;

    va_start(args,fmt);

    FILE* fp = NULL;

    fp = fopen(g_path,"at+");

    int nFileNameLen = strlen(pFileName);

    char szLine[] = {};

    sprintf(szLine,"%ld",lLine);

    int nLineLen = strlen(szLine);

    int nSpaceLen =  - nFileNameLen - nLineLen;

    for(i = ;  i < nSpaceLen; ++i)

    {

        fwrite(" ",,,fp);

    }

    fprintf(fp,"%s:%ld ",pFileName,lLine);

    iRet = vfprintf(fp,fmt,args);

    printf("iRet = %d\n",iRet);

    va_end(args);

    fflush(fp);

    fclose(fp);

    return iRet;

}

int main()

{

    char *p = "this is my first debug";

    printf("%s-%s-%d\n",__FILE__,__func__,__LINE__);

    LOG("%s %d\n",p,);

    return ;

}    

#include<stdio.h>

#include<stdarg.h>

#include<string.h>

const char * g_path = "/home/exbot/wangqinghe/log.txt";

#define LOG(fmt,...) my_fprintf(__FILE__,__FUNCTION__,__LINE__,fmt,##__VA_ARGS__)

int my_fprintf(const char *pFileName,const char *pFunName,const long lLine,const char* fmt,...)

{

    printf("%s-%s-%d\n",__FILE__,__FUNCTION__,__LINE__);

    int iRet = -;

    int i = ;

    va_list args;

    va_start(args,fmt);

    FILE* fp = NULL;

    fp = fopen(g_path,"at+");

    fprintf(fp,"%s:%ld ",pFileName,lLine);

    iRet = vfprintf(fp,fmt,args); //使用参数列表发送格式化输出到流stream中

    printf("iRet = %d\n",iRet);

    va_end(args);

    fflush(fp);

    fclose(fp);

    return iRet;

}

int main()

{

    char *p = "this is my first debug";

    printf("%s-%s-%d\n",__FILE__,__func__,__LINE__);

    LOG("%s %d\n",p,);

    //getchar();

    return ;

}