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  1. object Main extends App {
  2. 	def  makeRowSeq(row: Int) =
  3. for (col <-  1  to 10)  yield  {
  4.  
  5. val  prod =  (row *  col).toString
  6.  
  7. val  padding =  " " *  (4  - prod.length)
  8.  
  9. padding +  prod
  10.  
  11.  
  12.  
  13.  
  14.  
  15.  
  16. }
  17. // 以字串形式返回一行乘法表
  18.  
  19. def  makeRow(row: Int) =  makeRowSeq(row).mkString
  20. // 以字串形式返回乘法表，每行记录占一行字串
  21. def multiTable() =  {
  22. val tableSeq =  // 行记录字串的序列
  23. for  (row <-  1  to 10)
  24.  
  25. yield  makeRow(row)
  26.  
  27. tableSeq.mkString("\n")
  28. }
  29.  
  30. }
Success #stdin #stdout 0.24s 381760KB
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https://ideone.com/jcKnQC
language:
Scala (scala 2.12.8)
created:
9 years ago
visibility:
public

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