即前面所解释的参数：第 9.5.1.6 节 “getUrlResponse的参数:readWriteTimeout”，指的是StreamReader或StreamWriter的读写超时，和readLine之类的有关。
内部相关部分的代码是：
if (readWriteTimeout > 0)
{
//default ReadWriteTimeout is 300000=300 seconds = 5 minutes !!!
//too long, so here change to 300000 = 30 seconds
//for support TimeOut for later StreamReader's ReadToEnd
req.ReadWriteTimeout = readWriteTimeout;
}
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| 9.6.2.5. 支持网络超时设置 |  | 9.6.2.7. 支持自动处理cookie |
