Required libraries Core runtime dependencies System library Other runtime libraries Optional standard library dependencies Regular Expression engine Big Numbers Internationali...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment One-to-many assignment Splat assignment Underscore Assignment An assign...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment One-to-many assignment Splat assignment Underscore Assignment An assign...

Requiring files require “filename” require “./filename” Other forms Requiring files Writing a program in a single file is OK for little snippets and small benchmark code. Big...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment One-to-many assignment Splat assignment Underscore Assignment An assign...

Assignment Method as assignment target Combined assignments Chained assignment Multiple assignment One-to-many assignment Splat assignment Underscore Assignment An assign...

Compile-time flags Compile-time flags Types, methods and generally any part of your code can be conditionally defined based on some flags available at compile time. These flags...

Compile-time flags Querying flags Compiler-provided flags Target platform flags Architecture Vendor Operating System ABI Compiler options User-provided flags Stdlib feature...

赋值 多重赋值 赋值 local = 1 # 变量赋值 @instance = 2 # 实例属性赋值 @ @class = 3 # 静态类属性赋值 #同时支持的一些操作符 local += 1 # +, -, *, /, %, |, &, ^, **, <<, >> #这些也...

NamedTuple NamedTuple A NamedTuple is typically created with a named tuple literal: tuple = { name : "Crystal" , year : 2011 } # NamedTuple(name: String, year: Int32...