What’s new in Tornado 3.1 What’s new in Tornado 3.0.2 What’s new in Tornado 3.0.1 What’s new in Tornado 3.0 What’s new in Tornado 2.4.1 What’s new in Tornado 2.4 What’s new in Tornado 2.3 What’s new in Tornado html]. This web site and all documentation is licensed under Creative Commons 3.0 [https://creativecommons.org/licenses/by/3.0/].User’s guide Introduction Asynchronous and non-Blocking I/O Blocking Asynchronous What’s new in Tornado 3.0.2 Jun 2, 2013What’s new in Tornado 3.0.1 Apr 8, 2013 What’s new in Tornado 3.0 Mar 29, 2013 What’s new in Tornado 2.4.1 Nov 24, 2012 What’s new in Tornado 2.4 Sep 4, 2012 What’s

module now have better messages when tuples are used as callback keys. 6.9.44 What’s new in Tornado 3.0 Mar 29, 2013 Highlights • The callback argument to many asynchronous methods is now optional, and Apache License, Version 2.0. This web site and all documentation is licensed under Creative Commons 3.0. 255Tornado Documentation, Release 6.5.1 256 Chapter 7. Discussion and supportPYTHON MODULE INDEX

速度几乎一样，不过精度更高。所有的浮点型都是有符号的。 文件名：src/main.rs fn main() { let x = 2.0; // f64 let y: f32 = 3.0; // f32 } 浮点数采用 IEEE-754 标准表示。（f32 是单精度浮点数，f64 是双精度浮点数。） 数值运算 Rust 中的所有数字类型都支持基本数学运算：加法、减法、乘法、除法和取余。整数除法会