摘要:
转载自:http://en.wikipedia.org/wiki/Lazy_evaluationInprogramming language theory,lazy evaluationorcall-by-need[1]is anevaluation strategywhich delays the evaluation of an expression until the value of this is actually required (non-strict evaluation) and which also avoids repeated evaluations (sharing) 阅读全文
posted @ 2012-04-11 23:11
DavidYanXW
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