我如何添加另一個簡單的 function 以添加兩個選項以按數字升序和降序對此代碼進行排序？

Question

感謝所有幫助過的人。 由於一條評論指出了我的錯誤，我已經使代碼正常工作，我現在想添加一個 function 以獲得另外 2 個選項，以按數字升序和降序對這段代碼進行排序

fruit= [["apples", 5], ["pears", 10], ["oranges", 6], ["bananas", 12], ["grapes", 100]]

items= [["cars",3], ["sheets",5], ["bananas",8], ["bridges",17], ["roads",0], ["doors",1]]

colours= [["blue",1], ["black",7], ["orange",13], ["yellow",2], ["red",8], ["blue",5]]


merge = fruit + items + colours
result = set(
    (item, sum(quantity for label, quantity in merge if label == item))
    for item, _ in merge
)

print ()        
print ("SHOW DATA")
print ()

print ("fruit :", fruit)
print ("items :", items)
print ("colours :", colours)

print ()
print ("WHICH ORDER?")
print ()

print ("1 = Alphabetically Ascending")
print ("2 = Alphabetically Descending")
print ("")
SortOrder = int(input ("Enter the sort order you prefer for the merged data >"))

if (SortOrder == 1):
    lists = sorted(result)
    for l in lists:
       print(l)

elif (SortOrder == 2):
    lists = sorted(result, reverse=True)
    for l in lists:
       print(l)

Answer 1

集合沒有.sort()方法，您需要使用sorted()方法，並且循環遍歷未定義的lists 。

這是一個解決方案：

if (SortOrder == 1):
    lists = sorted(result)
    for l in lists:
       print(l)
elif (SortOrder == 2):
    lists = sorted(result, reverse=True)
    for l in lists:
       print(l)