. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 8.3. 使用 Hash Map 储存键值对 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 第七章介绍 Rust 的模块（module）系统，其中的私有性规则用来组织代码和公开的 API（应 用程序接口）。第八章讨论标准库提供的常见集合数据结构，例如 Vector（向量）、字符串和 Hash Map（散列表）。第九章探索 Rust 的错误处理的理念与技术。 第十章深入介绍泛型（generic）、Trait 和生命周期（lifetime），这些功能让你能够定义适用 于多种类型的代码。第十一章全面讲述了测试，因为就算 hosting。但是 hosting 的内容 （contents）仍然是私有的；这表明使模块公有并不使其内容也是公有的。模块上的 pub 关键 字只允许其父模块引用它，而不允许访问内部代码。因为模块是一个容器，只是将模块变为公 有能做的其实并不太多；同时需要更深入地选择将一个或多个项变为公有。 示例 7-6 中的错误说，add_to_waitlist 函数是私有的。私有性规则不但应用于模块，还应用 于结构体、枚举、函数和方法。

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315 25.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 25.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing STRINGS 62 i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315 25.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317 25.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing STRINGS 62 i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338 26.5 Parallel Map and Loops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 26.6 Remote References arithmetic and bitwise operators as well as standard mathematical functions are defined over them. These map directly onto numeric types and operations that are natively supported on modern computers, thus allowing manpage: i Do case-insensitive pattern matching. If locale matching rules are in effect, the case map is taken from the current locale for code points less than 255, and from Unicode rules for larger