返回结果在Body中无法显示出来，这时需要保存返回结果，以便查看。
10.在右边的连接详细信息中，">"开头的行表示该信息是发送给服务器的，"<"开头的行
表示该信息是从服务器返回的。
11.目前超时时间固定设为15秒，如果Web服务器没有响应，15秒后会自动报超时错误
下载地址 https://www.jb51.net/softs/43863.html
Fiddler HTTP调试工具
Fiddler is a HTTP Debugging Proxy which logs all HTTP traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP Traffic, set breakpoints, and "fiddle" with incoming or outgoing data. Fiddler is designed to be much simpler than using NetMon or Achilles, and includes a simple but powerful JScript.NET event-based scripting subsystem.
System Requirements
Windows 2000 / XP / 2003 with Microsoft .NET Framework v1.1 (4322)
10 megabytes disk space
500mhz Pentium/Athlon processor (Screams at 2ghz)
64 megabytes RAM (256 or more highly recommended)
https://www.jb51.net/softs/39248.html
