如何根据两个条件从一个数据帧追加到另一个空数据帧？

import pandas as pd
import numpy as np

df1 = pd.DataFrame({'条件1': [1, 2, 3], '条件2': ['A', 'B', 'C'], '数值': [10, 20, 30]})
df2 = pd.DataFrame(columns=['条件1', '条件2', '数值'])

condition1 = df1['条件1'] > 1
condition2 = df1['条件2'] == 'B'
filtered_df = df1[condition1 & condition2]

df2 = df2.append(filtered_df)

import pandas as pd
import numpy as np

# 创建源数据帧
df1 = pd.DataFrame({'条件1': [1, 2, 3], '条件2': ['A', 'B', 'C'], '数值': [10, 20, 30]})

# 创建空数据帧
df2 = pd.DataFrame(columns=['条件1', '条件2', '数值'])

# 条件筛选源数据帧
condition1 = df1['条件1'] > 1
condition2 = df1['条件2'] == 'B'
filtered_df = df1[condition1 & condition2]

# 追加到空数据帧
df2 = df2.append(filtered_df)

print(df2)