YOU CAN IF YOU BELIEVE YOU CAN

以下为源代码：item = [1, 10, 7, 4, 5, 9]def sum(item): head, *tail = item return head + sum(tail) if tail else headprint(f"sum = {sum(item)}")一下为输出结果：PS C:\Users\zoro.zhang> & C:/Users/zoro.zhang/AppData/Local/Programs/Python/Python39-3

records = [ ('foo', 1, 2), ('bar', 'Hello'), ('foo', 3, 4)]# records = [# 'foo', 1, 2,# 'bar', 'Hello',# 'foo', 3, 4# ]def do_foo(x, y): print('foo', x, y)def do_bar(s): print('bar', s)for tar, *args in records.