我正在关注字符串拆分的lua doc页面,自己尝试错误.例如,
Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
split("a,b,c", ",")
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回报
stdin:1: attempt to call global 'split' (a nil value)
stack traceback:
stdin:1: in main chunk
[C]: ?
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为什么会这样?