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 web code should aim to be asynchronous and non-blocking because only one operation can be active at a time. The terms asynchronous and non-blocking are closely related and are often used interchangeably, consider password hashing functions like bcrypt, which by design use hundreds of milliseconds of CPU time, far more than a typical network or disk access). A function can be blocking in some respects and

need to use Tornado’s web framework and HTTP server together.Asynchronous and non-Blocking I/O Real-time web features require a long-lived mostly-idle connection per user. In a traditional synchronous web code should aim to be asynchronous and non-blocking because only one operation can be active at a time. The terms asynchronous and non-blocking are closely related and are often used interchangeably, like bcrypt [http://bcrypt.sourceforge.net/], which by design use hundreds of milliseconds of CPU time, far more than a typical network or disk access). A function can be blocking in some respects and

Hello, world!。 如果你更熟悉动态语言，如 Ruby、Python 或 JavaScript，则可能不习惯将编译和运行分为两 个单独的步骤。Rust 是一种 预编译静态类型（ahead-of-time compiled）语言，这意味着你可 以编译程序，并将可执行文件送给其他人，他们甚至不需要安装 Rust 就可以运行。如果你给 他人一个 .rb、.py 或 .js 文件，他们需要先分别安装 R v0.1.0 (file:///projects/ownership) error[E0499]: cannot borrow `s` as mutable more than once at a time --> src/main.rs:5:14 | 4 | let r1 = &mut s; | ------ first mutable borrow occurs Billion Dollar Mistake” 中曾经说到： 118/562Rust 程序设计语言 简体中文版 I call it my billion-dollar mistake. At that time, I was designing the first comprehensive type system for references in an object-oriented language