#48 nested loop(巢狀迴圈) — 畫星星蘋果

正方形

//正方形
func square() {
for _ in 1...number {
for _ in 1...number {
content += images[imageIndex]
}
content += "\n"
}
resultLabel.text = content
}

三角形

//三角形
func triangle() {
for i in 1...number {
for _ in 1...i {
content += images[imageIndex]
}
content += "\n"
}
resultLabel.text = content
}

金字塔

//金字塔
func pyramid() {
for i in (1...number).reversed() {
for _ in stride(from: i, to: 1, by: -1) {
content += "🥑"
}
for _ in 1...2 * number + 1 - 2 * i  {
content += images[imageIndex]
}
content += "\n"
}
resultLabel.text = content
}

菱形

//菱形
func diamond() {
for i in (1...number).reversed() {
for _ in stride(from: i, to: 1, by: -1) {
content += "🥑"
}
for _ in 1...2 * number + 1 - 2 * i  {
content += images[imageIndex]
}
content += "\n"
}
for i in 1...number - 1 {
for _ in 1...i {
content += "🥑"
}
for _ in 1...2 * number - 1 - 2 * i {
content += images[imageIndex]
}
content += "\n"
}
resultLabel.text = content
}

Github

Timmy-LUO/forDrawApple

參考文章

#60 畫星星蘋果

Nested Loop練習｜畫星星蘋果

#49 畫星星蘋果長方形