变量作用域 作用域结构 全局作用域 局部作用域 let块 对于循环和推导式 常量 变量作用域 变量的作用域是代码的一个区域，在这个区域中这个变量是可见的。给变量划分作用域有助于解决变量命名冲突。这个概念是符合直觉的：两个函数可能同时都有叫做 x 的参量，而这两个 x 并不指向同一个东西。相似地，也有很多其他的情况下代码的不同块会使用同...

UUIDs UUIDs UUIDs.uuid1 — Function. uuid1 ([ rng :: AbstractRNG = GLOBAL_RNG ]) -> UUID Generates a version 1 (time-based) universally unique identifier (UUID), as spe...

Filesystem Filesystem Base.Filesystem.pwd — Function pwd () -> String Get the current working directory. See also: cd , tempdir . Examples julia > pwd () "/home...

多线程 使用线程池的 ccal 方法（实验性） 同步基元 多线程 这个实验性接口支持 Julia 的多线程功能。 类型和函数在本节的相关描述很有可能会在未来进行修改。 Base.Threads.threadid — Function Threads . threadid () Get the ID number of the cur...

Multi-Threading Starting Julia with multiple threads Data-race freedom The @threads Macro Atomic Operations Per-field atomics Side effects and mutable function arguments @thr...

Integers and Floating-Point Numbers Integers Overflow behavior Division errors Floating-Point Numbers Floating-point zero Special floating-point values Machine epsilon Roundi...

UUIDs UUIDs UUIDs.uuid1 — Function uuid1 ([ rng :: AbstractRNG ]) -> UUID Generates a version 1 (time-based) universally unique identifier (UUID), as specified by RFC 4...

Multi-Threading Atomic operations ccall using a libuv threadpool (Experimental) ) Low-level synchronization primitives Multi-Threading Base.Threads.@threads — Macro Thread...

Integers and Floating-Point Numbers Integers Overflow behavior Division errors Floating-Point Numbers Floating-point zero Special floating-point values Machine epsilon Roundi...

TOML Parsing TOML data Exporting data to TOML file References TOML TOML.jl is a Julia standard library for parsing and writing TOML v1.0 files. Parsing TOML data julia >...