# (1) 创建列表并输出
scores = [85, 90, 78, 92, 88]
print(scores)
# 输出: [85, 90, 78, 92, 88]
# (2) 输出第3个元素(索引从0开始)
print(scores[2])
# 输出: 78
# (3) 获取列表长度
print(len(scores))
# 输出: 5
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