Aclosureisanestedfunctionthatcanaccessfreevariablesfromanenclosingfunctionevenafterithasfinisheditsexecution.Weknowthat,likenestedfunctiondefinitions,lambdaexpressionscanreferencevaluesfromtheenclosingscope,solambda

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概述ARTS是耗子叔发起的编程挑战：每周完成一个ARTS：每周至少做一个leetcode的算法题、阅读并点评至少一篇英文技术文章、学习至少一个技术技巧、分享一篇有观点和思考