print(type("hello")) print(type(print)) --[[ 给一个全局变量付一个nil数值可以删除这个变量 ]]-- print("10"+1) days={"1","2","3","4","5","6","7"} print(days[4])
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原文：http://www.cnblogs.com/yufenghou/p/3582909.html
