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Use Python for data analysis: This book is a detailed version of Python's pandas package. Learn this to master some basic pandas commands. However, this is not the point, because pandas is too slow to produce a large amount of data and may collapse (I don't know if there is any improvement now-!) The point is, through studying this book, I feel a little about the data operation and am familiar with the basic data operation process. All the operations in this book can be replaced by native Python, and Pandas package is not needed. Finding feelings is very important.　　一个偶然的机会，布罗根找到了杰西并在杰西居住的小岛上和杰西相爱了。就在两个人过着世外桃源般的幸福爱情生活时，球队原主教练萨利找到了他们。身为朋友但不明真相的萨利本想好好教训一番布罗根并劝他返回球队参加比赛，谁知杰西却失手开枪将萨利打死。萨利死后，杰西当时就跑了，等布罗根处理完萨利的尸体回到城里找到杰克时，让布罗根意想不到的是，杰西居然出现在杰克的身边，而且杰克已经知道发生在丛林小岛上的一切事情……//Code Initialization三爷，怎么样？范文轲道：刘邦是逼我表态啊，不过已经答允我们回会稽了。In the above figure, the table to be operated is specified with the-t option, and the operation filter table is specified here. Like the previous view command, when the table is not specified with the-t option, the default is the operation filter table.Example: Cardui mariae fructus, the fruit of Silybum marianum