缺失值 缺失值的传播 相等和比较运算符 逻辑运算符 流程控制和短路运算符 包含缺失值的数组 跳过缺失值 数组上的逻辑运算 缺失值 Julia 支持表示统计意义上的缺失值，即某个变量在观察中没有可用值，但在理论上存在有效值的情况。缺失值由 missing 对象表示，该对象是 Missing 类型的唯一实例。missing 等价于...

Variables Allowed Variable Names Stylistic Conventions Variables A variable, in Julia, is a name associated (or bound) to a value. It’s useful when you want to store a value ...

Reporting and analyzing crashes (segfaults) ) Version/Environment info Segfaults during bootstrap (sysimg.jl) ) Segfaults when running a script Errors during Julia startup Othe...

Collections and Data Structures Iteration Constructors and Types General Collections Iterable Collections Indexable Collections Dictionaries Set-Like Collections Dequeues U...

集合和数据结构 迭代 构造函数和类型 通用集合 可迭代集合 可索引集合 字典 类似 Set 的集合 双端队列 集合相关的实用工具 集合和数据结构 迭代 序列迭代由 iterate 实现 广义的 for 循环 for i in iter # or "for i = iter" # body ...

Running External Programs Interpolation Quoting Pipelines Avoiding Deadlock in Pipelines Complex Example Running External Programs Julia borrows backtick notation for comm...

Running External Programs Interpolation Quoting Pipelines Avoiding Deadlock in Pipelines Complex Example Running External Programs Julia borrows backtick notation for comm...

Mathematics Mathematical Operators Mathematical Functions Examples Mathematics Mathematical Operators Base.:- — Method. -( x ) Unary minus operator. Examples juli...

Scope of Variables Scope constructs Global Scope Local Scope Let Blocks For Loops and Comprehensions Constants Scope of Variables The scope of a variable is the region of...

集合和数据结构 迭代 构造函数和类型 通用集合 可迭代集合 可索引集合 字典 类似 Set 的集合 双端队列 集合相关的实用工具 集合和数据结构 迭代 序列迭代由 iterate 实现 广义的 for 循环 for i in iter # or "for i = iter" # body ...