如何在pandas中根据条件删除行，并将字符串转换为整数进行比较

import pandas as pd

data = {'Name': ['Alice', 'Bob', 'Charlie', 'David', 'Eve'],
        'Age': ['25', '32', '28', '19', '36'],
        'City': ['New York', 'Paris', 'London', 'Tokyo', 'Sydney']}
df = pd.DataFrame(data)

      Name Age      City
0    Alice  25  New York
1      Bob  32     Paris
2  Charlie  28    London
3    David  19     Tokyo
4      Eve  36    Sydney

df['Age'] = df['Age'].astype(int)

df = df[df['Age'] < 30]

      Name  Age    City
0    Alice   25    New York
2  Charlie   28    London
3    David   19    Tokyo