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我與龜蟒蛇工作,我試圖做這樣的事情:Alterning三種以上的顏色爲圈子中龜蟒蛇
我做了兩種顏色的代碼,這基本上是簡單。問題是我不知道如何定義三個或更多的交替顏色。這裏是我的代碼:
imp = 0
while imp != 5:
wn = turtle.Screen()
Cicle = turtle.Turtle()
Cicle.speed(30)
print("1) Use just one color (Default orange)")
print("2) Use two colors (Default: red and blue)")
print("3) Use three colors (Default: red, blue and orange)")
print("4) Use four colors (Default: red, blue, yellow, black)")
print("5) If you want to exit")
imp = eval(input("Make your choice: "))
number = eval(input("How many cycles do you want to draw? "))
radius= eval(input("Define the radius: "))
if imp == 1:
for x in range(number):
Cicle.color("orange")
Cicle.circle(radius)
Cicle.right(int(360/number))
if imp == 2:
wn = turtle.Screen()
Cicle = turtle.Turtle()
Cicle.speed(15)
for x in range(number):
if x % 2 == 0:
Cicle.color("blue")
else:
Cicle.color("red")
Cicle.circle(radius)
Cicle.right(int(360/number))
if imp == 3:
wn = turtle.Screen()
Cicle = turtle.Turtle()
Cicle.speed(15)
for x in range(number):
if x:
Cicle.color("red")
if x + 1:
Cicle.color("blue")
if x + 2:
Cicle.color("orange")
Cicle.circle(radius)
Cicle.right(int(360/number))
你能幫我嗎?
P.S:我知道,如果語句沒有意義。這只是一個嘗試 – pp94 2014-10-04 21:40:39
我不*完全*我確定我理解你的問題,但聽起來我創建一個(有限循環)['cycle()'](https://docs.python.org/2.7 /library/itertools.html#itertools.cycle)你的三種顏色可以爲你工作。例如:'colors = cycle(['red','green','blue'])',然後通過執行'color = colors.next()'來獲得下一個顏色。 – 2014-10-04 21:45:47
aaah。是啊。也許它會工作。我也不知道Python中的下一個函數的存在。我會嘗試 – pp94 2014-10-04 21:49:27