iiiTornado Documentation, Release 6.5.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens Chapter 3. Threads and WSGICHAPTER FOUR ASYNCIO INTEGRATION Tornado is integrated with the standard library asyncio module and shares the same event loop (by default since Tornado 5.0). In general, libraries User’s guide 6.1.1 Introduction Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network I/O, Tornado can scale to tens

Tornado [https://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking blocking code. asyncio Integration Tornado is integrated with the standard library asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] can be mixed freely with Tornado. Installation pip install tornado

seed。接着调用随机 数生成器的 gen_range 方法。这个方法由 use rand::Rng 语句引入到作用域的 Rng trait 定义。 gen_range 方法获取一个范围表达式（range expression）作为参数，并生成一个在此范围之 间的随机数。这里使用的这类范围表达式使用了 start..=end 这样的形式，它对上下边界均为 闭区间，所以需要指定 1..=100 来请求一个 1 和 100 reference `&{integer}` note: method defined here --> /rustc/4eb161250e340c8f48f66e2b929ef4a5bed7c181/library/core/src/ cmp.rs:964:8 For more information about this error, try `rustc --explain E0308`. 31/562Rust 简体中文版 语句和表达式 函数体由一系列的语句和一个可选的结尾表达式构成。目前为止，我们提到的函数还不包含结 尾表达式，不过你已经见过作为语句一部分的表达式。因为 Rust 是一门基于表达式 （expression-based）的语言，这是一个需要理解的重要区别。其他语言并没有这样的区别， 所以让我们看看语句与表达式有什么区别以及这些区别是如何影响函数体的。 • 语句（Statements）是执行一些操作但不返回值的指令。