df = pd.DataFrame({'Type':['Apple', 'Pear', 'Orange', 'Grape', 'Banana', 'Lemon', 'Watermelon', 'Tomato'],
'Price':[25, 10, 15, 30, 12, 15, 30, 20]})
print(df)
row_index = df[df.Type == 'Watermelon'].index.tolist()[0]
print('Type列Watermelon下标位置:',row_index)