Swift - Repeating Code Using Loops(using nested for loops, range(inclusive, exclusive), print the triangle)

The Swift Programming Language
Apple Inc.

開発環境

• OS X Mavericks - Apple(OS)
• Xcode 6.1 Beta
• Swift (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3 (Pragmatic Programmers) (Paul Gries (著)、Jennifer Campbell (著)、Jason Montojo (著)、Lynn Beighley (編集)、Pragmatic Bookshelf)のChapter 9(Repeating Code Using Loops)、9.10(Exercises) 14.をSwiftで考えてみる。

9.10(Exercises) 14.

コード(Xcode)

main.swift

//
//  main.swift
//  sample14
//
//  Created by kamimura on 9/19/14.
//  Copyright (c) 2014 kamimura. All rights reserved.
//

import Foundation

for x in 1...7 {
    for y in 0..<(7 - x) {
        print(" ")
    }
    for y in 1...x {
        print("T")
    }
    println()
}

入出力結果(Console Output)

      T
     TT
    TTT
   TTTT
  TTTTT
 TTTTTT
TTTTTTT
Program ended with exit code: 0