https://blog.youkuaiyun.com/PUQ263piGzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/PUQ263piG/article/details/162636201https://blog.youkuaiyun.com/PUQ263piG/article/details/162636201PUQ263piGMon, 06 Jul 2026 15:28:55 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162636175https://blog.youkuaiyun.com/PUQ263piG/article/details/162636175PUQ263piGMon, 06 Jul 2026 15:28:12 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162606920https://blog.youkuaiyun.com/PUQ263piG/article/details/162606920PUQ263piGSun, 05 Jul 2026 15:55:22 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162606913https://blog.youkuaiyun.com/PUQ263piG/article/details/162606913PUQ263piGSun, 05 Jul 2026 15:54:40 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162582655https://blog.youkuaiyun.com/PUQ263piG/article/details/162582655PUQ263piGSat, 04 Jul 2026 15:55:14 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162582645https://blog.youkuaiyun.com/PUQ263piG/article/details/162582645PUQ263piGSat, 04 Jul 2026 15:54:30 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162559693https://blog.youkuaiyun.com/PUQ263piG/article/details/162559693PUQ263piGFri, 03 Jul 2026 19:53:24 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162559679https://blog.youkuaiyun.com/PUQ263piG/article/details/162559679PUQ263piGFri, 03 Jul 2026 19:52:39 +0800 二进制 -> 可读信息。计算机只能理解和传输0/1序列，而计算机的用户则总是输入和输出可读信息。网络协议保证了可读信息在整个转换和传输过程中的完整性。]]>https://blog.youkuaiyun.com/PUQ263piG/article/details/162529188https://blog.youkuaiyun.com/PUQ263piG/article/details/162529188PUQ263piGThu, 02 Jul 2026 22:19:43 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162529172https://blog.youkuaiyun.com/PUQ263piG/article/details/162529172PUQ263piGThu, 02 Jul 2026 22:18:46 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162495814https://blog.youkuaiyun.com/PUQ263piG/article/details/162495814PUQ263piGWed, 01 Jul 2026 19:48:00 +0800object （子类到父类的转换）逆变性，如：object->string （父类到子类的转换）不变性，基于上面两种情况，不可变。具体下面再做分析。]]>https://blog.youkuaiyun.com/PUQ263piG/article/details/162495791https://blog.youkuaiyun.com/PUQ263piG/article/details/162495791PUQ263piGWed, 01 Jul 2026 19:46:57 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162463266https://blog.youkuaiyun.com/PUQ263piG/article/details/162463266PUQ263piGTue, 30 Jun 2026 19:45:03 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162463251https://blog.youkuaiyun.com/PUQ263piG/article/details/162463251PUQ263piGTue, 30 Jun 2026 19:44:03 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162429036https://blog.youkuaiyun.com/PUQ263piG/article/details/162429036PUQ263piGMon, 29 Jun 2026 19:07:02 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162429024https://blog.youkuaiyun.com/PUQ263piG/article/details/162429024PUQ263piGMon, 29 Jun 2026 19:06:17 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162395518https://blog.youkuaiyun.com/PUQ263piG/article/details/162395518PUQ263piGSun, 28 Jun 2026 16:54:55 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162395509https://blog.youkuaiyun.com/PUQ263piG/article/details/162395509PUQ263piGSun, 28 Jun 2026 16:53:57 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162373999https://blog.youkuaiyun.com/PUQ263piG/article/details/162373999PUQ263piGSat, 27 Jun 2026 20:42:07 +0800https://blog.youkuaiyun.com/PUQ263piG/article/details/162373987https://blog.youkuaiyun.com/PUQ263piG/article/details/162373987PUQ263piGSat, 27 Jun 2026 20:40:37 +0800