If you are using a WebKit browser like Chromium or Opera, you should be able to right click on a page and click Inspect Element. There should be a tab for Resources and then on the side should be a button that says Cookies.
There are also a great many other resources for web designers in Developer Tools.
Firefox also has an extension called Firebug that allows you to see HTTP headers.
IE may also work with Firebug Lite.
For seeing all packets on your network, check out Wireshark. There are plenty of tutorials on the web on how to use it to extract HTTP header packets and browser data.
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使用开发者工具。
如果您使用的是 Chromium 或 Opera 等 WebKit 浏览器，您应该能够右键单击页面并单击检查元素。应该有一个资源选项卡，然后在侧面应该有一个显示Cookies的按钮。
开发者工具中还为网页设计师提供了大量其他资源。
Firefox 还有一个名为 Firebug 的扩展，它允许您查看 HTTP 标头。
IE 也可以与 Firebug Lite 配合使用。
要查看网络上的所有数据包，请查看 Wireshark。网上有很多关于如何使用它提取 HTTP 标头数据包和浏览器数据的教程。
Use Developer Tools.
If you are using a WebKit browser like Chromium or Opera, you should be able to right click on a page and click Inspect Element. There should be a tab for Resources and then on the side should be a button that says Cookies.
There are also a great many other resources for web designers in Developer Tools.
Firefox also has an extension called Firebug that allows you to see HTTP headers.
IE may also work with Firebug Lite.
For seeing all packets on your network, check out Wireshark. There are plenty of tutorials on the web on how to use it to extract HTTP header packets and browser data.
您还可以尝试 Fiddler： http://www.telerik.com/fiddler
这是一个很棒的工具，并且还有一个代理，您可以使用它来跟踪与浏览器以外的进程之间的流量。
You could also try Fiddler: http://www.telerik.com/fiddler
It is a great tool, and also has a proxy that you can use to track traffic that is to/from processes other than your browser.