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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # Scala 遞歸函數 遞歸函數在函數式編程的語言中起著重要的作用。 Scala 同樣支持遞歸函數。 遞歸函數意味著函數可以調用它本身。 以上實例使用遞歸函數來計算階乘: ``` object Test { def main(args: Array[String]) { for (i <- 1 to 10) println(i + " 的階乘為: = " + factorial(i) ) } def factorial(n: BigInt): BigInt = { if (n <= 1) 1 else n * factorial(n - 1) } } ``` 執行以上代碼,輸出結果為: ``` $ scalac Test.scala $ scala Test 1 的階乘為: = 1 2 的階乘為: = 2 3 的階乘為: = 6 4 的階乘為: = 24 5 的階乘為: = 120 6 的階乘為: = 720 7 的階乘為: = 5040 8 的階乘為: = 40320 9 的階乘為: = 362880 10 的階乘為: = 3628800 ```
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