<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<script>
let a = 10;
let b = 8;
let c = a&b;
//00000000 00000000 00000000 00001010;
//00000000 00000000 00000000 00001000;
// 按位与 都真取真
//00000000 00000000 00000000 00001000;
</script>
</body>
</html>