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大熊Cody

#1 Created at ... [Delete] [Delete and Lock User] 
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]

def by_name(t):
    return t[0].lower()

def by_score(t):
    return t[1]

L2 = sorted(L,key=by_name)
print(L2)

L2 = sorted(L,key=by_score,reverse=True)
print(L2)

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#2 Created at ... [Delete] [Delete and Lock User]

请问t[o]是什么意思呀？

大海水海底金

#3 Created at ... [Delete] [Delete and Lock User]

t[0]是取t的第一个元素

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