因此，有多個重復的代碼，例如while塊和塊中的條件if-elif。我在網上閱讀和觀看了教程，其中大多數都提到重復代碼是一種不好的做法。為了提高我的編程技能，有沒有辦法縮短下面的代碼？下面的代碼基本上是獲取用戶輸入的兩種原色，并打印出混合顏色的結果。PRIMARY_COLORS = ["red", "blue", "yellow"]mixed_color = ""while True: primary_color_1 = input("Enter the first primary color in lower case letters: ") primary_color_1 = primary_color_1.lower() if primary_color_1 in PRIMARY_COLORS: break else: print("Error: the color entered is not a primary color.")while True: primary_color_2 = input("Enter the second primary color in lower case letters: ") primary_color_2 = primary_color_2.lower() if primary_color_2 in PRIMARY_COLORS: break else: print("Error: the color entered is not a primary color.")if primary_color_1 == primary_color_2: print("Error: The two colors you entered are the same.") exit(1)elif ((primary_color_1 == PRIMARY_COLORS[0]) and (primary_color_2 == PRIMARY_COLORS[1])) or ((primary_color_2 == PRIMARY_COLORS[0]) and (primary_color_1 == PRIMARY_COLORS[1])): mixed_color = "purple"elif ((primary_color_1 == PRIMARY_COLORS[0]) and (primary_color_2 == PRIMARY_COLORS[2])) or ((primary_color_2 == PRIMARY_COLORS[0]) and (primary_color_1 == PRIMARY_COLORS[2])): mixed_color = "orange"elif ((primary_color_1 == PRIMARY_COLORS[1]) and (primary_color_2 == PRIMARY_COLORS[2])) or ((primary_color_2 == PRIMARY_COLORS[1]) and (primary_color_1 == PRIMARY_COLORS[2])): mixed_color = "green"print(f"When you mix {primary_color_1} and {primary_color_2}, you get {mixed_color}.")
1 回答
Qyouu
TA貢獻1786條經驗 獲得超11個贊
您可以通過使用函數來減少重復（例如用于輸入顏色） 您可以通過使用以一對顏色作為鍵和混合顏色作為值的字典來簡化顏色混合。
為避免必須處理兩種顏色排列，請使用數組來存儲它們并對數組進行排序。這允許您的字典鍵僅關注按字母順序排列的顏色對。
下面是一個例子：
PRIMARY_COLORS = ["red", "blue", "yellow"]
mixes = { ("blue","red"):"purple", ("red","yellow"):"orange", ("blue","yellow"):"green" }
def inputColor(rank):
while True:
color = input("Enter the "+rank+" primary color in lower case letters: ").lower()
if color in PRIMARY_COLORS: return color
print("Error: the color entered is not a primary color.")
colors = tuple(sorted([inputColor("first"),inputColor("second")]))
if colors[0] == colors[1]:
print("Error: The two colors you entered are the same.")
elif colors in mixes:
print(f"When you mix {colors[0]} and {colors[1]}, you get {mixes[colors]}.")
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