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Using a 函式积木 in combination with an algorithm, one can quickly check if a particular 字串 passed in as an argument has a list of characters within it.

Programming

The following 程式 can be used to check the condition. The 变量 (condition) is evaluated to true of false depending on if the string has the particular characters. For this script, assume the following:

  • "condition" is a variable used to determine true or false (the return variable)
  • "i" is a variable used for iterating (moving form one character to another)
  • "matches" is a variable used to determine the amount of characters detected in the base string
  • "allLetters" is a list compiled of the characters being checked for; it is useful because lists have a built-in function for checking contained items
Warning Note: This is different than 字串是否包含指定字串的检查 because this script does not require the characters to be in sequential order.
定義 check if (base) has (characters)
變數 [condition v] 設為 [false]
刪除第 (全部 v) 項 \( [allLetters v] \)
變數 [i v] 設為 (1)
重複 (字串長度\( (characters) \)) 次 
  新增項目 (字串中第 (i) 字\( (characters) \)) \( [allLetters v] \)
  變數 [i v] 改變 (1)
end // adds each letter to a list
變數 [i v] 設為 (1)
變數 [matches v] 設為 (0)
重複 (字串長度\( (base) \)) 次 
  如果 <清單 [allLetters v] 包含 (字串中第 (i) 字\( (base) \)) ?> 那麼 
    變數 [matches v] 改變 (1)
  end
  變數 [i v] 改變 (1)
end
如果 <(matches) = (清單 [allLetters v] 的項目數 :: list)> 那麼 
  變數 [condition v] 設為 [true]
end

参见