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import pandas as pd
data = [['小太阳', 320.9, 100], ['鼠标', 150.3, 50], ['小刀', 1.5, 200]]
columns = ['名称', '单价', '数量']
df = pd.DataFrame(data=data, columns=columns)
print(df)
print(df.describe()) # 描述信息
print(df.count()) # 非空值的个数
print(df.sum()) # 求和
print(df.max()) # 最大值 -- 中文的比较 -> 翻译成英文后排序
print(df.min()) # 最小值