从输入中获取值并放入字符串数组乐透游戏

Question

我是 javascript 新手，我正在尝试制作一个彩票游戏，在其中我生成 8 个随机十六进制数字，如 15 4A FF 45 77 C3 EE 7E 并介绍我的数字。我想找到我猜到的数字。我从输入中获取值并将它们放入一个数组并在数字之间插入空格，然后拆分结果。生成的数字相同，但我不知道我没有得到正确的结果。<section id="section2">    <h2>Internet Loto</h2>    <button onclick="genHexString();">Genereaza numere</button>    <br />    <button onclick="tryAgain()" ;>Incearca din nou</button>    <p id="loto"></p>    <p class="numere">        <label for="nr1">Nr1:</label>        <input pattern="[A-Z0-9]{2}" id="nr1">        <label for="nr2">Nr2:</label>        <input pattern="[A-Z0-9]{2}" id="nr2">        <label for="nr3">Nr3:</label>        <input pattern="[A-Z0-9]{2}" id="nr3">        <label for="nr4">Nr4:</label>        <input pattern="[A-Z0-9]{2}" id="nr4">        <label for="nr5">Nr5:</label>        <input pattern="[A-Z0-9]{2}" id="nr5">        <label for="nr6">Nr6:</label>        <input pattern="[A-Z0-9]{2}" id="nr6">        <label for="nr7">Nr7:</label>        <input pattern="[A-Z0-9]{2}" id="nr7">        <label for="nr8">Nr8:</label>        <input pattern="[A-Z0-9]{2}" id="nr8">    </p></section>函数 genHexString() {var output = "";for (let i = 0; i < 16; ++i) {    output += (Math.floor(Math.random() * 16)).toString(16).toUpperCase();    document.getElementById("loto").innerHTML += '&nbsp';    if (i % 2 != 0 && i < 15) {        output += '&nbsp'; // space for display each number as pair of 2 characters    }}var res = output.split(" "); document.getElementById("loto").innerHTML = "Winning numbers: " + output;var input = "";for (let i = 1; i < 9; i++) {    var x = "nr" + i;    input += document.getElementById(x).value + '&nbsp';}var res2 = input.split(" ");document.getElementById("loto").innerHTML += "<br/>Your numbers: " + res2;var count = 0;var i, j;for (i = 0; i < output.length; i++) {    for (j = 0; j < input.length; j++) {        if (res[i] == res2[j]) {            count += 1;        }    }}document.getElementById("loto").innerHTML += "<br/>Numere ghicite: " + count;}

Answer 1

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes

包含功能可以派上用场。

试试这个

function genHexString() {

var output = "";

for (let i = 0; i < 16; ++i) {

    output += (Math.floor(Math.random() * 16)).toString(16).toUpperCase();

    document.getElementById("loto").innerHTML += '&nbsp';

    if (i % 2 != 0 && i < 15) {

        output += '&nbsp'; // space for display each number as pair of 2 characters

    }

}

document.getElementById("loto").innerHTML = "Winning numbers: " + output;

var count = 0;

var input = "";

console.clear();

for (let i = 1; i <= 8; i++) {

    var x = `nr${i}`;

    let value=document.getElementById(x).value;

    if(output.includes(value) && value)

       count++;

    input += value + '&nbsp';

}

document.getElementById("loto").innerHTML += "<br/>Your numbers: " + input;

document.getElementById("loto").innerHTML += "<br/>Numere ghicite: " + count;

}

label{

margin-left:10px;

}

input{

margin-top:5px;

margin-left:30px;

}

.as-console-wrapper { max-height: 100% !important; top: 0; }

<section id="section2">

    <h2>Internet Loto</h2>

    <button onclick="genHexString();">Genereaza numere</button>

    <br />

    <button onclick="tryAgain()" ;>Incearca din nou</button>

    <p id="loto"></p>

    <p class="numere">

        <label for="nr1">Nr1:</label>

        <input pattern="[A-Z0-9]{2}" id="nr1">

        <label for="nr2">Nr2:</label>

        <input pattern="[A-Z0-9]{2}" id="nr2">

        <label for="nr3">Nr3:</label>

        <input pattern="[A-Z0-9]{2}" id="nr3">

        <label for="nr4">Nr4:</label>

        <input pattern="[A-Z0-9]{2}" id="nr4">

        <label for="nr5">Nr5:</label>

        <input pattern="[A-Z0-9]{2}" id="nr5">

        <label for="nr6">Nr6:</label>

        <input pattern="[A-Z0-9]{2}" id="nr6">

        <label for="nr7">Nr7:</label>

        <input pattern="[A-Z0-9]{2}" id="nr7">

        <label for="nr8">Nr8:</label>

        <input pattern="[A-Z0-9]{2}" id="nr8">

    </p>

</section>