Python编程挑战100题——05序列索引

Python编程挑战100题——05序列索引

letters=["a","b","c","d","e","f","g","h","i","j","k"]
print(letters[??])

问题：#完成代码，输出字母b

答案：

letters=["a","b","c","d","e","f","g","h","i","j","k"]
print(letters[1])

解析：字母b为于列表第二的位置，但因为列表下表索引是从0开始的，所以要填1。