text: import pandas as pd
  #df=pd.read_csv('Train_DataSet_Label.csv')
  # df.columns=['id','title','content']
  # df['label']=0
  # df[['id','label']].to_csv('submit_example.csv',index=False)
  def cal(text):
      df=pd.read_csv(text)
      df0=len(df[df['label']==0])
      print(df0)
      df1=len(df[df['label']==1])
      print(df1)
      df2=len(df[df['label']==2])
      print(df2)
      sum=df1+df2+df0
      print(df0/sum,df1/sum,df2/sum)
  
  cal('data_0/train.csv')
  cal('data_0/dev.csv')