我有這樣一個清單:蟒蛇過濾不同的字典鍵值列表
lis = [{"class":"math","teacher":"Joe"}, {"class": "english","teacher":"Marry"},
{"class": "history","teacher":"Anne"},{"class": "history","teacher":"Bob"}
{"class": "math","teacher":"Cathy"}]
而且我想找到DISTICT class
(多少列表中的類):
['math','english','history']
哪有我這麼做?
謝謝。你的解決方案非常快。 – user2492364
沒有問題,不客氣 –