"Username" required autofocus>
    <label for="password" class="sr-only">Password</label>
    <input style="margin-top: 3px" type="password" id="password" name="password" class="form-control" placeholder="Password" required>
    <br>
    <button class="btn btn-lg btn-primary btn-block" id="btn_login">登录</button>
    <br>
    <a href="/register.html">没有帐号? 点此注册</a>
</div>
</body>
</html>

<script src="static/graphql.js"></script>

<script>
    isLogin().then((r) => {
        if (r) {
    