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姓名排列时key能以str进行排列，到了分数就出现了类型错误，我丢

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Young·飘走的船

#1 Created at ... [Delete] [Delete and Lock User] 
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]def by_name(t):    return sorted(t, key=str)print(by_name(L))def by_score(t):    # return sorted(t, key=, reverse=True)    return t[1]print(sorted(L, key=by_score, reverse=True))

Young·飘走的船

#2 Created at ... [Delete] [Delete and Lock User] 
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]def by_name(t):    return sorted(t, key=str)print(by_name(L))def by_score(t):    # return sorted(t, key= int, reverse=True)    return t[1]print(sorted(L, key=by_score, reverse=True))
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