<?php
/**
* Rock Paper Scissors
* by inuxor
*/
function rps() {
$rps = array("石头", "剪刀", "布");
$keys = array_keys($rps);
shuffle($keys);
$computer = $keys[0];
echo "请输入: 石头 剪刀 布\n";
$keyin = trim(fgets(STDIN));
$person = array_search($keyin, $rps);
if($person === false){
echo "输入错误！！\n";
rps();
}else{
echo "电脑出的是:" . $rps[$computer] . "\n";
$action = $computer - $person;
if($action == 0){
echo "平局\n";
}else if($action == -2 || $action == 1){
echo "你赢\n";
}else{
echo "电脑赢\n";
}
echo "再来一次?(y/n)\n";
$yorn = trim(fgets(STDIN));
if($yorn == 'y'){
rps();
}else if($yorn == 'n'){
echo "Bye\n";
}else{
echo "全当是再来一次了，再来！\n";
rps();
}
}
}
echo "开始猜拳游戏\n";
rps();
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