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  1. --数字を文字列に変換
  2. n = tonumber("55.5")
  3. --文字列を数字に変換
  4. s = tostring(99.5)
  5.  
  6. print(type(n))
  7. print(type(s))
Success #stdin #stdout 0.01s 2540KB
stdin
Standard input is empty
stdout
number
string