提供者状态 消费者代码库 提供者代码库 基状态 全局状态 测试错误响应 在set_up和tear_down中使用引入的模块 提供者状态 关于这一高级话题，请先阅读提供者状态 一节的介绍。 当按照以下形式来阅读时，提供者状态中的文本应该具有足够的可读性（自动生成的文档是按这样的形式展示的）： Given an alligator wit...

if if An if evaluates the given branch if its condition is truthy. Otherwise, it evaluates the else branch if present. a = 1 if a > 0 a = 10 end a # => 1...

if if An if evaluates the given branch if its condition is truthy. Otherwise, it evaluates the else branch if present. a = 1 if a > 0 a = 10 end a # => 1...

if if An if evaluates the given branch if its condition is truthy. Otherwise, it evaluates the else branch if present. a = 1 if a > 0 a = 10 end a # => 1...

if if An if evaluates the given branch if its condition is truthy. Otherwise, it evaluates the else branch if present. a = 1 if a > 0 a = 10 end a # => 1...

OpcUA 数据采集应用示例 OpcUA 数据采集应用示例 使用了opcua的Lua模块: open62541-lua 读取Simulation节点下所有数据项 代码: --- 导入需求的模块 local class = require 'middleclass' local opcua = requi...

Triggers and Templates Catalog Triggers Templates app-created app-deleted app-deployed app-health-degraded app-sync-failed app-sync-running app-sync-status-unknown app-sync...

异常 对于异常处理，倾向使用 raise 而不是 fail 。[link ] # 差 fail SomeException , 'message' # 好 raise SomeException , 'message' 不要在带双参数形式的 raise 方法中显式指定 RuntimeError 。[li...

Metaprogramming Differences between Ruby and Crystal How to Translate Some Ruby Tricks to Crystal Overriding #new via extend Generating Methods via method_missing Macro How to...

Metaprogramming Differences between Ruby and Crystal How to Translate Some Ruby Tricks to Crystal Overriding #new via extend Generating Methods via method_missing Macro How to...