摘要:
iex(3)> t= "Science.Math"
"Science.Math"
iex(4)> :"Science.Math".add(1, 2)
** (UndefinedFunctionError) undefined function :"Science.Math".add/2 (module :"Science.Math" is not available)
:"Science.Math".add(1, 2) 阅读全文
posted @ 2016-04-05 23:59
写着写着就懂了
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