asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets need to use Tornado’s web framework and HTTP server together. 6.1.2 Asynchronous and non-Blocking I/O Real-time web features require a long-lived mostly-idle connection per user. In a traditional synchronous

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 12. 一个 I/O 项目：构建命令行程序 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289 13.3. 改进之前的 I/O 项目 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 如1_000，它的值与你指定的 1000 相同。 表格 3-2: Rust 中的整型字面值 数字字面值 例子 Decimal (十进制) 98_222 Hex (十六进制) 0xff Octal (八进制) 0o77 Binary (二进制) 0b1111_0000 Byte (单字节字符)(仅限于u8) b'A' 那么该使用哪种类型的数字呢？如果拿不定主意，Rust 的默认类型通常是个不错的起点，整 型默认是

developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling [https://en [https://readthedocs.org/projects/tornado/downloads/]. User’s guide Introduction Asynchronous and non-Blocking I/O Coroutines Queue example - a concurrent web spider Structure of a Tornado web application Templates [https://creativecommons.org/licenses/by/3.0/].User’s guide Introduction Asynchronous and non-Blocking I/O Blocking Asynchronous Examples Coroutines Native vs decorated coroutines How it works How to call