练习题-sort

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练习题-sort

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R语言爱好者

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

#第一题：
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
def by_name(t):
    return t[:][0]
L2 = sorted(L, key=by_name)
print(L2)
#result：[('Adam', 92), ('Bart', 66), ('Bob', 75), ('Lisa', 88)]
#第二题：
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
def by_score(t):
    return t[:][1]
L2 = sorted(L, key=by_score,reverse=True)
print(L2)
#result:[('Adam', 92), ('Lisa', 88), ('Bob', 75), ('Bart', 66)]