<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>随机密码</title>
</head>
<body>
</body>
</html>
<script>
// 结果
var res = '';
// 数字+大小写字母+特殊字符
var str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()_+~`|}{[]:;?><,./-=';
// 设定的密码长度
var length = 8;
for (var i = 0; i < length; i++) {
var item = Math.floor(Math.random() * str.length);
res += str.charAt(item);
}
document.getElementsByTagName('body')[0].innerText = res;
console.log(res);
</script>
ps：如果你想给网页插入一张图片，可以用innerHTML，如：
document.getElementsByTagName('body')[0].innerHTML = "<img src='https://www.baidu.com/img/PCtm_d9c8750bed0b3c7d089fa7d55720d6cf.png' >";
标签：12,08,innerHTML,随机,2023,var From： https://www.cnblogs.com/iuniko/p/17624831.html