lua --- __newindex 

1 -- __newindex 对表进行更新
2 MyMetatable = {}
3 MyTable = setmetatable({["newKey"] = 12}, {__newindex = MyMetatable})
4 MyTable.newKey1 = 156
5 print(MyTable.newKey1)          --- nil
6 print(MyMetatable.newKey1)        --- 156

 

posted @ 2018-12-04 19:37  小·糊涂仙  阅读(279)  评论(0)  编辑  收藏  举报