基本表单提交和页面浏览

1.表单提交

 <!-- 用户注册模块 -->
    <h4>用户注册</h4>
    <form action="login.php" method="get">
        <div>
            <label for="uname">用户：</label>
            <input type="text" name="name" id="uname" autofocus placeholder="请输入用户名称">
            <br>
            <br>
            <label for="npwd">密码：</label>
            <input type="password" name="pwd" id="npwd" autofocus placeholder="请输入密码">
        </div>
        <br>
        <div>
            <label for="sex">性别：</label>
            <input type="radio" name="sex" id="sex" value="0" checked><label for="sex">男</label>
            <input type="radio" name="sex" id="sex2" value="1"><label for="sex2">女</label>
            <input type="radio" name="sex" id="sex3" value="2"><label for="sex3">其他</label>
        </div>
<br>
        <div>
            <input type="submit" value="立即注册">
        </div>
    </form>
    <hr>

2.页面浏览

 <!-- 后台管理框架 -->
    <div>
        <ul>
            <li><a href="https://developer.mozilla.org/en-US/" target="contemt">发布文章</a></li>
            <li><a href="https://www.zhihu.com/question/40870645/answer/144181058" target="contemt">栏目管理</a></li>
            <li><a href="https://www.jianshu.com/p/514db255139f" target="contemt">SEO设置</a></li>
            <li><a href="https://developer.mozilla.org/en-US/" target="contemt">资源管理</a></li>
            <li><a href="https://www.jianshu.com/p/514db255139f" target="contemt">网站设置</a></li>
        </ul>
    </div>
    <!-- 页面容器 -->
<iframe srcdoc="<a href='javascript:;'>请点击菜单</a>" src="#" frameborder="1" name="contemt" width="500" height="500"></iframe>