纯C
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
char *cmd1[6] = {"reset", "reset", "board", "board", "reboot", "backplane"};
char *cmd2[6]= {"no use", "board", "add", "delete", "backplane", "abort"};
void cmd_out(int index)
{
switch(index)
{
case 0:
printf("reset what\n");
break;
case 1:
printf("board fault\n");
break;
case 2:
printf("where to add\n");
break;
case 3:
printf("no board at all\n");
break;
case 4:
printf("impossible\n");
break;
case 5:
printf("install first\n");
break;
default:
printf("unknown command\n");
break;
}
}
int main()
{
char in[28] = {'\0'};
while(gets(in))
{
int len = strlen(in);
if(len > 16)
{
printf("unknown command\n");
continue;
}
int blank_flag = 1, pos; //blank_flag判断是否有空格,pos空格的位置
for(int i=0; i<len; i++)
{
if(in[i] == ' ')
{
blank_flag = 0;
pos = i;
break;
}
}
//输入一个字串的情况
if(blank_flag)
{
if(strncmp(in, cmd1[0], len) == 0)
printf("reset what\n");
else
printf("unknown command\n");
}
//输入两个字串的情况
else
{
int cnt=0, index;
for(int i=1; i<6; i++)
{
if(strncmp(in, cmd1[i], pos) == 0 &&
strncmp(in+pos+1, cmd2[i], len-pos-1) == 0)
{
cnt++;
index=i;
}
}
if(cnt==1)
cmd_out(index);
else
printf("unknown command\n");
}
}
return 0;
}