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#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#define NEWFILE (O_WRONLY&#124;O_CREAT&#124;O_TRUNC)
#define SIZE 80
int write_buffer(int fd,char *buf,int count);
void case8(int i,char *j);
void default8();
int main(int argc, char * argv[])
{

  int outfile,i;
  char filename[]={"test.dat"};
  char buffer[SIZE];
  char *buf;
  char *argv2;

  printf("%d\n\n\n",argc);
  if(argc<=2)
  {
    default8();
    exit(0);

  }
  switch(atoi(argv[1]))
  {
     case 0:
    {
    case8(atoi(argv[1]),argv[2]);
    break;
    }
     case 1:
    {
    argv2=argv[2];
    case8(atoi(argv[1]),argv[2]);
    break;
    }
     case 2:
    {
    argv2=argv[2];
    case8(atoi(argv[1]),argv[2]);
    break;
    }
     case 3:
    {
    argv2=argv[2];
    case8(atoi(argv[1]),argv[2]);
    break;
    }
     default:
    {
    default8();
    }
   }
}
/*
  for(i=0;i<argc;i++)
  {
  printf("the argv's value is %d\n",argc);
  printf("argv[%d]=%s\n",i,argv[i]);
  }

*/

/*
  buf = argv[1];
  if((outfile=open(filename,NEWFILE,0640))==-1)
  {
     printf("ERRO,OPEN FILE FAILED!\n");
     exit(255);
  }
  //printf("%s",buf);
  fgets(buffer,SIZE-1,stdin);
  printf("%s\n",buffer);
  if(write_buffer(outfile,buffer,SIZE)==-1)
     {
    printf("ERROR,WRITE FAILED:\n",strerror(errno));
    exit(255);
     }
  close(outfile);
  return 0;

  int write_buffer(int fd,char *buf,int count)
  {
  int n;
  n=write(fd,buf,strlen(buf));
  return 1;
  }

*/

  void case8(int i,char *j){
    printf("you enter is ./a.o %d %s\n",i,j);
      }
  void default8(){
    printf("which you put a not suitable for our need:");
    printf("填加测试企业:../bin/example 0\n");
    printf("按照企业id删除企业:../bin/example 1 100071\n");
    printf("按照企业名称删除企业:../bin/example 2 \"my enterprise name\"\n");
    printf("按照企业名称取得g级邮箱标识:../bin/example 3 \"my enterprise name\"\n");
    printf("按照企业id取得g级邮箱标识:../bin/example 4 \"my enterprise ID\"\n");
    printf("other:待补充\n");
    }  

作者：jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除
地址：https://jackxiang.com/post/768/
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