関連ワード:  python get position of element in string    python get position of character in string    python get index of element in string    python get position of char in string    python get position of word in string    python get index of character in string    python get index of char in string    python get index of item in string    python get index of word in string    python find position of character in string from end  
結果 : python get position of element in string