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my_list = ['a', 'b', 'c', 'd', 'e']

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first_element = my_list[0]
print(first_element)  # 杈撳嚭锛?#x27;a'

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last_element = my_list[-1]
print(last_element)  # 杈撳嚭锛?#x27;e'

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渚嬪锛屾彁鍙栧垪琛ㄤ腑鐨勫墠涓変釜鍏冪礌锛?/p>

first_three_elements = my_list[0:3]
print(first_three_elements)  # 杈撳嚭锛歔'a', 'b', 'c']

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first_two_elements = my_list[:2]  # 绛夊悓浜巑y_list[0:2]
print(first_two_elements)  # 杈撳嚭锛歔'a', 'b']

last_two_elements = my_list[-2:]  # 绛夊悓浜巑y_list[3:5]
print(last_two_elements)  # 杈撳嚭锛歔'd', 'e']