所以我写了这段代码，当我按下按钮在矩形上生成 4 个随机数时我尝试（如果它可以生成 4 个带有最多 10 个字符的数字和字母的随机结果，那就太好了）。什么是正确的方法？我尝试了很多东西，现在我卡住了
谢谢你的时间
let passboxes = document.getElementsByClassName('grid-item')
function generatepass (){
// let randomnumber = Math.floor(Math.random()*13 ) +1
randomnumber = Math.floor(Math.random()*13 ) +1
for (i=0 ; i<passboxes.length; i++) {
passboxes[i].textContent += randomnumber
}
}html , body {
margin: 0;
padding: 0;
background-color: #1F2937;;
color: #F9FAFB;
}
#bodydiv {
margin-left: 62px;
}
#text1 {
font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
font-size: 200%;
position: relative;
margin-top: 64px;
/* line-height: 10px; */
}
.tria {
font-family: 'Cambria', 'Cochin', Georgia, Times, 'Times New Roman', serif;
font-style: normal;
font-weight: 300;
font-size: 50%;
line-height: 40px;
}
.duo{
color: #F59E0B;
}
p{
margin: 0;
}
#passbtn {
padding: 10 15;
color: #F9FAFB;
margin-top: 30px;
border: 0;
background-color: #F59E0B;
border-radius: 8px;
font-size: 100%;
box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.05);
}
.grid-container {
display: inline-grid;
grid-template-columns: auto auto;
margin-top: 50px;
column-gap: 30px;
row-gap: 30px;
}
.grid-item ,.grid-item2,.grid-item3,.grid-item4 {
height: 20;
background-color: #F59E0B;
font-size: large;
width: 200px;
padding: 5 5;
text-align: center;
border-radius: 8px;
}<html>
<head>
<link href="https://cdn.lineicons.com/3.0/lineicons.css" rel="stylesheet">
<link rel="stylesheet" href="index.css">
</head>
<body>
<div id="bodydiv">
<div id="text1">
<p class="ena">Generate a</p>
<p class="duo">random password</p>
<p class="tria">Never use an insecure password again.</p>
</div>
<div>
<button id="passbtn" onclick="generatepass()" ><i class="lni lni-lock-alt"></i> Generate passwords</button>
</div>
<div class="grid-container">
<div id="mmm" class="grid-item">1</div>
<div class="grid-item">2</div>
<div class="grid-item">3</div>
<div class="grid-item">4</div>
</div>
<script src="index.js"></script>
</div>
</body>
</html>回答1
不确定我会说这是可扩展的，但是对于字母，我会将其添加到数组中
const letters = ["A","B".."Z"]
function generateRandomLetterArray(){
let randomLetterArr = []
for(i=0, i<{how every many random letters you want}, i++){
let randomNumber = {math random number between 0 and 25 (because there are 26 letters)}
randomLetter = letters[randomNumber]
randomLetterArr.push(randomLetter)
}
}此时你在 randomLetterArr 中有一堆随机字母