题解 | #配置文件恢复#
配置文件恢复
http://www.nowcoder.com/practice/ca6ac6ef9538419abf6f883f7d6f6ee5
let str;
const k = ['reset',
'reset board',
'board add',
'board delete',
'reboot backplane',
'backplane abort']
const t = ['reset what',
'board fault',
'where to add',
'no board at all',
'impossible',
'install first']
while(str = readline()){
let target = []
let arr = str.split(' ');
// let reg = '/^' + arr.map(v => `${v}[a-z]*`).join('\\s') + '$/g';
let reg = new RegExp('^' + arr.map(v => `${v}[a-z]*`).join('[ ]') + '$')
let res = k.filter((v,k)=>{
let use = reg.test(v)
if(use){
target.push(k)
}
return use;
})
if (!res.length || res.length >= 2) {
console.log('unknown command')
} else {
console.log(t[target[0]])
}
} 
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