Flask 键盘事件

    <div class="container" style="margin-top: 300px; ">
        <div class="row">
            <div class="col-md-offset-4 col-md-4 ">
                <p><input class="sign_in_input" id="username" placeholder="请输入用户名" autofocus></p>
                <p><input class="sign_in_input" id="password" type="password" placeholder="请输入密码" ></p>
                <button id='sign_in_button' class="btn btn-lg btn-warning btn-block" style="opacity: 0.9" onclick="sign_in()">登  录</button>

            </div>
        </div>
    </div>

    <script>

    //写方法提交用户名和密码
    function sign_in(){
        //获取用户名
        var username = $('#username').val()
        //获取密码
        var password = $('#password').val()

        //拼接url
        var url = '/checkuser/username='+username+'/password='+password;
        $.getJSON(url,function(msg){
            if (msg.result == 0){
                alert("用户名或密码错误")
            }
            else{
                // alert('登陆成功')

                //存储账号 信息，设置生命周期
                //获取当前时间
                var date = new Date()
                //getTime()是方法要加()
                date.setTime(date.getTime() + 1000*60*60)
                // console.log(date)
                $.cookie('username',username,{expires:date})

                window.location.href = "/"
            }
        })

    };
    //监听回车事件
    //event参数是键盘监听事件
    $(document).keyup(function(event){
        //判断回车键的code
        if (event.keyCode == 13){
            //如果确定点击了回车键，那么就调用方法
            // sign_in();
            //模拟点击按钮
            $('#sign_in_button').click();
        }

    });

    </script>