dataframe merge

import pandas as pd

df1 = pd.DataFrame({
    
    'id': ['001', '001', '003'],
                    'num1': [120, 120, 104],
                    'num2': [110, 110, 121],
                    'num3': [105, 105, 113]})
df2 = pd.DataFrame({
    
    'id': ['001', '002', '003', '004'],
                    'num4': [80, 86, 79, 70]})
print(df1)
print("=======================================")
print(df2)
print("=======================================")
df_merge = pd.merge(df1, df2, on='id')
print(df_merge)