... 当地交换中心,区域交换中心 local exchange switching center 本地范围 local extent 区域性失效 local failure ...
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绑定vars允许在线程本地范围内对事物进行变更。
Binding vars simply allows you to change things in a thread local scope.
当一个闭包“捕获”一个变量时,它就会将这个变量提取出它的本地范围,移到一个匿名对象里。
When a closure "captures" a variable it "lifts" the variable out of its local scope and effectively moves it into an anonymous object.
在词法上确定范围是指在本地环境中定义变量。
Lexically scoped variables refer to the local environment in which they were defined.
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