JS应用猜数游戏

(function(){

let rs = require("readline-sync");

let guessNumber = new Set();

function getNumber() {//随机生成四个不重复的小于10的整数，且第一个数大于0.

    guessNumber.clear();

    while (guessNumber.size < 4) {

        let randomNumber = parseInt(Math.random() * 10);

        guessNumber.add(randomNumber);

        if (guessNumber.size == 1 && randomNumber == 0) {

            guessNumber.clear();

        }

    }

}

function getGuessInputNumber() {

    while (true){

        console.log("请输入你猜测的数：（是一个首位不为0的不重复4位数）");

        let inputNum = rs.question();

        let exchangeNum = Number(inputNum);

        if (exchangeNum) {

            if (exchangeNum >= 1000 && exchangeNum <= 9999) {

                let t = exchangeNum;

               

                let geWei = (t % 10);t=parseInt(t/10);

                let shiWei = (t % 10);t=parseInt(t/10);

                let baiWei = (t % 10);t=parseInt(t/10);

                let qiuanWei = (t % 10);t=parseInt(t/10);

                let judge = new Set([qiuanWei,baiWei,shiWei,geWei]);

                if (judge.size == 4) {

                    return [...judge];

                } else {

                    console.log("输入的4位数字出现重复位！");

                }

            } else {

                console.log("请输入一个4位数字！");

            }

        } else {

            console.log("请输入一个数字！");

        }

    }

}

function judgeNumber(inputNum){//参数是一个数字，包含4位数的各个部分

    let SystemNum = [...guessNumber];

    let a=0,b=0;

    for (let i = 0; i < inputNum.length; i++) {

        let index = SystemNum.indexOf(inputNum[i]);//-1,0,1,2,3

        if(index == i){

            a++

        }else if(index == -1){

        }else{

            b++;

        }

    }

    console.log(`${a}A${b}B`);

    if(a==4){

        return true;

    }

}

function run(){//主体逻辑，一般命名为run或者main

    getNumber();

    for (let i = 0; i < 10; i++) {

        if(judgeNumber(getGuessInputNumber())){

            console.log("恭喜你，猜成功了，你一共使用了"+(i+1)+"次猜测机会!");

            break;

        }

        console.log("请继续")

    }

}

run();

})()