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How to get HTTP information in the navigation bar through JavaScript

一个新手Original: 2017-10-10 10:03:451473browse

The annotated part in style is to obtain the information in HTTP
The display effect in body is:

When you click OK, the information will be deleted
When you click Cancel, the information will not be deleted
When opening the page, an input prompt box will pop up automatically
When you click delete, a warning box will pop up

<!DOCTYPE html><html lang="en"><head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <title></title>

    <!-- JavaScript代码 -->
    <script>
        //        console.log("URL地址: " + window.location.href);
        //        console.log("主机名: " + window.location.hostname);
        //        console.log("端口: " + window.location.port);
        //        console.log("主机: " + location.host); // 主机名+端口
        //        console.log("协议: " + location.protocol);
        //        console.log("路径: " + location.pathname);

        //        console.log("有效的宽度（单位：像素）: " + screen.availWidth);
        //        console.log("有效的高度（单位：像素）: " + screen.availHeight);
        //        console.log("每个像素颜色的位数: " + screen.colorDepth);

        //        document.write("官方浏览器代码名的字符串的表示：" + navigator.appCodeName + "<br/>");
        //        document.write("官方浏览器名的字符串的表示：" + navigator.appName + "<br/>");
        //        document.write("用户代理：" + window.navigator.userAgent + "<br/>");
        //        document.write("版本信息：" + window.navigator.appVersion + "<br/>");
        //        document.write("浏览器所在的计算机的平台：" + window.navigator.platform + "<br/>");
        //        document.write("Cookie：" + window.navigator.cookieEnabled + "<br/>");
    </script></head><body><script>
    function remove() {
        var r = confirm("确定要删除吗？");
        console.log(r);
    }

    prompt("您几岁？");</script><table>
    <tr>
        <th>姓名</th>
        <th>年龄</th>
        <th>操作</th>
    </tr>
    <tr>
        <td>张三</td>
        <td>19</td>
        <td><input type="button" value="删除" onclick="return remove();"/></td>
    </tr>
    <tr>
        <td>李四</td>
        <td>18</td>
        <td><input type="button" value="删除" onclick="return remove();"/></td>
    </tr>
    <tr>
        <td>王五</td>
        <td>20</td>
        <td><input type="button" value="删除" onclick="return remove();"/></td>
    </tr>
    <tr style="display: none">
        <td>赵六</td>
        <td>21</td>
        <td><input type="button" value="删除" onclick="return remove();"/></td>
    </tr>
    <tr>
        <td>孙七</td>
        <td>20</td>
        <td><input type="button" value="删除" onclick="return remove();"/></td>
    </tr></table></body></html>

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