题解 | #配置文件恢复#

#新知识:用input().strip().split()去替代[x for x in input().split()]
#我的方法属于逻辑非常简单钻漏洞的方法，正确且思考周全的做法应该是别人的切片法
#但是我懒得改了哈哈哈哈
while True:
    try:        
        list1=input().strip().split()
        if len(list1)==1:
            if list1[0] in 'reset':
                print('reset what',end='\n')
            else:
                print("unknown command",end='\n')
        if len(list1)==2:
            if list1[0] in 'reset' and list1[0] in 'reboot' and list1[1] in 'board'and list1[1] in 'backplane':
                print('unknown command',end='\n')
            elif list1[0] in 'board' and list1[0] in 'backplane' and list1[1] in 'add'and list1[1] in 'abort':
                print('unknown command',end='\n')
            elif list1[0] in 'reset' and list1[1] in 'board':
                print('board fault',end='\n')
            elif list1[0] in 'board' and list1[1] in 'add':
                print("where to add",end='\n')
            elif list1[0] in 'board' and list1[1] in 'delete':
                print("no board at all",end='\n')
            elif list1[0] in 'reboot' and list1[1] in 'backplane':
                print("impossible",end='\n')
            elif list1[0] in 'backplane' and list1[1] in 'abort':
                print("install first",end='\n')
            else:
                print("unknown command",end='\n')
    except:
        break