假設我們用一組tuple表示學生名字和成績:
L = [('Bob', 75), ('Adam', 92), ('Bart', 66), ('Lisa', 88)]
1. 請用sorted()
對上述列表分別按名字排序:
L = [('Bob',75), ('Admin', 92), ('Bart', 66), ('List', 88)]
def by_name(t):
return t[0].lower()
L2 = sorted(L, key=by_name)
print(L2)
2.再按成績從高到低排序:
L = [('Bob',75), ('Admin', 92), ('Bart', 66), ('List', 88)]
def by_score(t):
return t[1]
L3 = sorted(L, key=by_score, reverse=True)
print(L3)