加载静态文件,父模板的继承和扩展

Posted 李笑晴

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  1. 用url_for加载静态文件
    1. <script src="{{ url_for(\'static\',filename=\'js/login.js\') }}"></script>
    2. flask 从static文件夹开始寻找
    3. 可用于加载css, js, image文件
  2. 继承和扩展
    1. 把一些公共的代码放在父模板中,避免每个模板写同样的内容。base.html
    2. 子模板继承父模板
      1.   {% extends \'base.html’ %}
    3. 父模板提前定义好子模板可以实现一些自己需求的位置及名称。block
      1. <title>{% block title %}{% endblock %}-MIS问答平台</title>
      2. {% block head %}{% endblock %}
      3. {% block main %}{% endblock %}
    4. 子模板中写代码实现自己的需求。block
      1.   {% block title %}登录{% endblock %}
  3. 首页、登录页、注册页都按上述步骤改写。
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>{%block title %}{% endblock %}导航</title>
        <link rel="stylesheet" type="text/css" href="{{url_for(\'static\',filename=\'css/daohang.css\')}}">
    </head>
    <body bgcolor="#00ffff">
    <ul>
        <li><a class="active" >首页</a></li>
        <li><a >新闻</a></li>
        <li><a >图库</a></li>
        <li><a >关于</a></li>
        <input class="eat" type="text" name="sousuo" value="请输入内容">
        <input class="eat"type="button" name="submit" value="搜索">
        <li><a href="http://127.0.0.1:5000/login/">登录</a></li>
        <li><a href="http://127.0.0.1:5000/zhu/">注册</a></li>
    </ul>
    {% block main %}{% endblock %}
    
    </body>
    </html>
    ul {
        list-style-type: none;
        margin: 0;
        padding: 0;
        overflow: hidden;
        background-color: #333;
    }
    
    li {
        float: left;
    }
    li a {
        display: block;
        color: white;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
    }
    li a:hover:not(.active) {
        background-color: #111;
    }
    .active {
        background-color: #4CAF50;
    }
    .eat{
        margin-top:0.4cm;
    }
    .tea{
        border:2px solid #a1a1a1;
        padding:10px 500px;
        background:hotpink;
        width:300px;
        border-radius:25px;
    }
    #rcorners6 {
    
        background: #8AC007;
        padding: 5px;
        width: 1300px;
        height: 50px;
    }
    {% extends\'daohang.html\' %}
    {% block title %}
    <h1>登录</h1>
    {% endblock %}
    {% block main %}
        <head>
     <link rel="stylesheet" type="text/css" href="{{ url_for(\'static\',filename=\'css/denglu.css\') }}">
        <script src="../static/js/muban.js"></script>
    </head>
    <body>
    <div class="one"> <h2>登录</h2>
    
           <div class="input_box"  >
               <input id="uname" type="text" placeholder="请输入用户名">
           </div>
           <div class="input_box">
               <input id="upass" type="password" placeholder="请输入密码">
           </div>
           <div id="error_box"><br></div>
       <div class="input_box">
           <button onclick="myLogin()">登录</button>
       </div>
       </div>
      </div></div>
    </body>
    {% endblock %}
    .one{
        border-style:dotted solid;
        border-color:royalblue;
        border-width:5px;
         margin: 0 auto;
        text-align: center;
        background-color:palevioletred;
         width: 300px;
    }
    h2{
        color:black;
        text-align:center;
    }
    
    .input_box{
        width: 300px;
        height: 30px;
        border-bottom-width: 2px;
        line-height: 30px;
        font-weight: bold;
    
    }
    .input_box{
        font-size: 8px;
        font-weight: bold;
        border-color: blanchedalmond;
    }
    .error_box{
         width: 80px;
        height: 30px;
        border-bottom-width: 2px;
        line-height: 30px;
        font-weight: bold;
        background-color:palevioletred;
    }
    {% extends\'daohang.html\' %}
    {% block title %}
    <h1>注册页面</h1>
    {% endblock %}
    {% block main %}
        <head>
      <link rel="stylesheet" type="text/css" href="{{url_for(\'static\',filename=\'css/zhuce.css\')}}">
     <script src="{{url_for(\'static\',filename=\'js/muban.js\')}}"></script>
    </head>
    <body>
     <div class="two">
    
          <h2>用户注册</h2>
    
           <div class="input_box"  >
               <input id="uname" type="text" placeholder="请输入用户名">
           </div>
           <div class="input_box">
               <input id="upass" type="password" placeholder="请输入密码">
           </div>
         <div class="input_box">
               <input id="upass" type="password" placeholder="请再次确认密码">
           </div>
           <div id="error_box"><br></div>
       <div class="input_box">
           <button onclick="myLogin()">注册</button>
       </div>
       </div>
      </div>
    </div>
    </body>
    {% endblock %}
    .two{
        border-style:dotted solid;
        border-color:royalblue;
        border-width:5px;
         margin: 0 auto;
        text-align: center;
        background-color:palevioletred;
         width: 300px;
    }
    h2{
        color:black;
        text-align:center;
    }
    
    .input_box{
        width: 300px;
        height: 30px;
        border-bottom-width: 2px;
        line-height: 30px;
        font-weight: bold;
    
    }
    .input_box{
        font-size: 8px;
        font-weight: bold;
        border-color: blanchedalmond;
    }
    .error_box{
         width: 80px;
        height: 30px;
        border-bottom-width: 2px;
        line-height: 30px;
        font-weight: bold;
        background-color:palevioletred;
    }
    function fnlogin() {
                var oUname = document.getElementById("uname");
                var oUpass = document.getElementById("upass");
                var oPas=document.getElementById("upas")
                var oError = document.getElementById("error_box");
                oError.innerHTML = "<br>"
                if (oUname.value.length < 6 || oUname.value.length > 12) {
                    oError.innerHTML = "name:6-20";
                    return;
                }
                else if(oUname.charCodeAt(0)>=48&&oUname.charCodeAt(0)<=57){
                    oError.innerHTML="first number.";
                    return;
                }else for(var i=0;i<oUname.value.length;i++){
                    if((oUname.value.charCodeAt(i)<48||oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<97||oUname.value.charCodeAt(i)>122)){
                        oError.innerHTML="only letter or number."
                    }
                }
                 if(oPas.value!=oPass.value){
                    oError.innerHTML=\'密码输入不正确\'
                }
    
                if (oUpass.value.length < 6 || oUpass.value.length >20) {
                    oError.innerHTML = "password:6-20";
                    return;
                }
                window.alert("登录成功!")
            }

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