配置文件恢复

import sys
oneKey='reset'
twoKeys=['reset board','board add','board delet','reboot backplane','backplane abort']
do=['board fault','where to add','no board at all','impossible','install first']
def do_command(order,twoKeys,do):
    count=0
    index=0
    for k in twoKeys:#匹配第一关键字和第二关键字
        if order[0]==k.split()[0][:len(order[0])] and order[1]==k.split()[1][:len(order[1])]:
            count+=1#对符合匹配结果的情形计数，因为匹配结果唯一才算匹配成功
            index=twoKeys.index(k)
    if count>1 or count==0:
        print('unkown command')
    else:
        print(do[index])
for i in sys.stdin:#按行读取命令
            order=i.strip().split()#对每一个命令切片
            if len(order)<=0 or len(order)>2:#判断命令是几个字符串
                print('unkown command')
            elif len(order)==1:#当命令是一个字符串，判断该字符串与‘reset’是否匹配
                if order[0] == oneKey[:len(order[0])]:#此处要特别注意用order[0]
                    print('reset what')
                else:
                    print('unkown command')
            elif len(order)==2:
                do_command(order,twoKeys,do)
'''
while True:
    try:
        for i in sys.stdin:
            order=i.strip().split()
            if len(order)<=0 or len(order)>2:
                print('unkown command')
            elif len(order)==1:
                if order[0] == oneKey[:len(order[0])]:
                    print('reset what')
                else:
                    print('unkown command')
            elif len(order)==2:
                do_command(order,twoKeys,do)
    except:
        break 
'''

	

#include <iostream>
#include <string>
#include <sstream>
using namespace std;
bool match(string str,string s){
    return str.find(s)==0;//判断str.find(s)返回的位置是否是第一位
}
int main(){
    string s;
    string Keys[6]={"reset","reset board","board add","board delet","reboot backplane","backplane abort"};
    string Do[7]={"reset what","board fault","where to add","no board at all","impossible","install first","unkown command"};
    while(getline(cin,s)){
        string s1,s2,Keys1,Keys2;
        int index,temp,count=0;
        stringstream ss(s);//读取s中的单字，比如hello world ,就会读取hello和world
        ss >> s1 >> s2;//C++这个字符串流很棒，这里和python的split()很像
        if(s2.empty())
            index=match(Keys[0],s1) ? 0:6;
        else{
            for(int k=1;k<6;k++){
                stringstream sss(Keys[k]);
                sss >> Keys1 >> Keys2;
                if(match(Keys1,s1) && match(Keys2,s2)){
                    count++;
                    temp=k;
                }
            }
            if(count>1 || count==0)
                index=6;
            else
                index=temp;
        }
/*
        if(ss<=0 || ss.size()>2)
            index=6;
        else if(ss.size()==1){
            if(s1==Keys[0][:s1.size()])
                index=0;
            else index=6;
        }
        else{
            for(int k=0;k<6;k++){
                stringstream sss(Keys[k]);
                sss >> Keys[k]_1 >> Keys[k]_2;
                if((s1==Keys[k]_1[:s1.size()]) && (s2==Keys[k]_2[:s2.size()])){
                    count++;
                    index=k;
                }
            }
            if(count>1 || count==0)
                index=6;
                */
        cout << Do[index] << endl;
    }
    return 0;
}