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How to find the grouping of Python restrictions

編輯:Python

Suppose there is an information sheet of a group of students , They are from 1,2,3,4,5 A class , Now I want to calculate the number of boys and girls in each class respectively
If the group is normal, I know it can df.groupby('calss')['gender'].value_counts()
But now I want to get the number of boys and girls in each class respectively list, How to write
All I can think of is df.loc[df.gender==' male ']groupby('class')['gender'].value_counts() such , Is there any other way

classgender1 male 2 male 1 Woman 3 male 5 Woman 4 Woman 2 Woman 4 male
My solution ideas and tried methods
What I want to achieve

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