我是 Flask 的超级新手,我正在尝试用 Flask 在 python 中构建一个小应用程序......
我想显示一个等待屏幕,然后在 5 秒后,继续到下一页。问题是,我不知道在没有按钮的情况下我应该把这个“动作”放在哪里。就像我现在拥有的那样,我编写的 python 代码似乎没有效果。
我的代码如下:
我有一个waiting_screen.html
:
{% block header %}
<head>
<!-- standard stuff -->
<link rel="shortcut icon" href="{{ url_for('static', filename='favicon.png') }}">
<style>
#loader {
position: absolute;
left: 50%;
top: 50%;
z-index: 1;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
@-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
/* Add animation to "page content" */
.animate-bottom {
position: relative;
-webkit-animation-name: animatebottom;
-webkit-animation-duration: 1s;
animation-name: animatebottom;
animation-duration: 1s
}
@-webkit-keyframes animatebottom {
from { bottom:-100px; opacity:0 }
to { bottom:0px; opacity:1 }
}
@keyframes animatebottom {
from{ bottom:-100px; opacity:0 }
to{ bottom:0; opacity:1 }
}
#myDiv {
display: none;
text-align: center;
}
</style>
<!--<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.7.2/basic.css"> -->
</head>
<div class="header-with-image" style="width: 100%; background-color:white; height: 70px; color: white;padding:0px;">
<img class='banner-image' src="{{ url_for('static', filename='images/logo_header.jpg') }}" style="display: block;
margin-left: auto;
margin-right: auto;
width: 8%;
margin-bottom:<y>px;">
</div>
<div class="row justify-content-center align-items-center" style="width: 100%;
box-shadow: 0 4px 2px -2px rgba(0,0,0,.2);
height:100px;
background-color:#2c3350;
margin-top:<x>px;
text-align: center;">
<h1>Consolidatie Tool</h1>
</div>
<div class='row head valign-wrapper' >
<div class='col s8 rellax center-align' data-rellax-speed="-2">
<br>
<br>
</div>
</div>
{% endblock %}
{% block content %}
<div style="padding: 2%;font-family: Verdana; margin:15px; text-align: center;margin-left: auto;height: 40%;
margin-right: auto;background: #ffffff;border-radius:4px;border-color:red;
box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);width:30%;" >
<form action="/first-page-info-check" method="POST">
</form>
<h4 style="text-align:center"> Bezig om documenten te verwerken... </h4>
<br>
<head>
<div id="loader" action="/first-page-info-check"></div>
<div style="display:none;" id="myDiv" class="animate-bottom" action="/first-page-info-check">
<h2>Tada!</h2>
<p>Some text in my newly loaded page..</p>
</div >
<script>
var myVar;
function myFunction() {
myVar = setTimeout(showPage, 3000);
}
function showPage() {
document.getElementById("loader").style.display = "none";
document.getElementById("myDiv").style.display = "block";
}
</script>
</head>
</div>
{% endblock %}
下一页confirm_upload.html
在 url /first-page-info-check 处调用,我有以下 flask/python 代码:
@app.route('/first-page-info-check',methods=['POST', 'GET'])
def waiting():
time.sleep(5)
return render_template('confirm_upload.html')
我知道我将action="/first-page-info-check"
at 放在代码中的多个位置,不应该这样做,但我只是还不明白在没有表单时应该如何放置动作..
希望可以有人帮帮我 :)