希望有人能幫我查字典：
data = [
{
"firstname" : "David",
"lastname" : "Brown",
"class" : [ "economy" ]
},
{
"firstname" : "Alina",
"lastname" : "Hoper",
"class" : [ "economy", "business" ]
},
{
"firstname" : "Bill",
"lastname" : "Flow",
"class" : [ "business" ]
},
{
"firstname" : "James",
"lastname" : "Frank",
"class" : [ "economy" ]
}
]
作為輸出，我需要查看誰購買了經濟艙和誰購買了商務艙：排序 = 按班級升序，在班級按名字升序。所以先做生意，再做經濟。和阿麗娜兩個班級都是第一，因為她買了兩個班級。
business: Alina Hoper, Bill Flow, ...
economy: Alina Hoper, David Brown, ...
我嘗試撰寫函式，但現在無法理解從哪里開始排序以及如何按類轉換字典和分組資料：
def analyze(customers_data):
data = ""
data = "{} {} \n".format(customers_data["firstname"], customers_data["lastname"])
data = "{} \n".format(customers_data["aff"])
return data
for d in orders:
print(analyze(d))
希望有人能幫忙
uj5u.com熱心網友回復：
您應該首先獲取經濟/商業客戶的串列，然后列印這些串列中的名稱：
data = [
{
"firstname" : "David",
"lastname" : "Brown",
"class" : [ "economy" ]
},
{
"firstname" : "Alina",
"lastname" : "Hoper",
"class" : [ "economy", "business" ]
},
{
"firstname" : "Bill",
"lastname" : "Flow",
"class" : [ "business" ]
},
{
"firstname" : "James",
"lastname" : "Frank",
"class" : [ "economy" ]
}
]
business_custom = [dic for dic in data if "business" in dic["class"]]
eco_custom = [dic for dic in data if "economy" in dic["class"]]
business_names = ', '.join(sorted([f"{dic['firstname']} {dic['lastname']}" for dic in business_custom]))
economy_names = ', '.join(sorted([f"{dic['firstname']} {dic['lastname']}" for dic in eco_custom]))
print(f"business: {business_names}")
print(f"economy: {economy_names}")
輸出：
business : Alina Hoper, Bill Flow
economy : Alina Hoper, David Brown, James Frank
編輯：如果您事先不知道類名，則可以創建一組類：
class_set = set()
for dic in data:
for c in dic['class']:
class_set.add(c)
for c in sorted(list(class_set)):
custom = [dic for dic in data if c in dic["class"]]
names = ', '.join(sorted([f"{dic['firstname']} {dic['lastname']}" for dic in custom]))
print(f"{c}: {names}")
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