//배열

입력값                                                                                                             출력값

var intArray = [1, 2, 3, 4]                                                                                              [1, 2, 3, 4]

var stringArray = ["가", "나", "다"]                                                                             ["가", "나", "다"]

//반복문에서의 예제, 결과값이 1, 2, 3, 4로 출력

for i in 0..<intArray.count {                                                                                          (4times)

      intArray[ i ]

}

//반복문에서 역반복문의 예제, 결과값이 4, 3, 2, 1로 출력

for i in (0..<intArray.count).reversed ( ) {                                                                   (4times)

      intArray[ i ]

}

var intArray = [1, 2, 3, 4]                                                                                              [1, 2, 3, 4]

var stringArray = ["가", "나", "다"]                                                                             ["가", "나", "다"]

//element의 경우에도 마찬가지 입니다. 출력값이 1, 2, 3, 4입니다

for element in intArray {                                                                                              (4times)

      element

}

//역시 출력값이 가, 나, 다 입니다

for element int stringArray {                                                                                        (3times)

      element

}