Hash模式
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">index</div>
<div>
<a href="\#">index</a>
</div>
<div>
<a href="\#a">a</a>
</div>
<div>
<a href="\#b">b</a>
</div>
</body>
<script>
function goto(url) {
if (!url) {
document.querySelector('\#app').innerHTML = 'index';
} else if (hash === 'a') {
document.querySelector('\#app').innerHTML = 'a';
} else if (hash === 'b') {
document.querySelector('\#app').innerHTML = 'b';
} else {
document.querySelector('\#app').innerHTML = '404';
}
}
window.addEventListener('hashchange', function () {
goto(location.hash.substring(1));
});
window.addEventListener('load', function (e) {
goto(location.hash.substring(1));
});
</script>
</html>