如何从dataframe中随机选取行，直到它们成为特定值，然后显示选取的行？

import pandas as pd
import random

data = {'A': [1, 2, 3, 4, 5],
        'B': [6, 7, 8, 9, 10],
        'C': [11, 12, 13, 14, 15]}
df = pd.DataFrame(data)

def select_rows(df, target_value):
    selected_rows = pd.DataFrame()
    while True:
        random_row = df.sample(n=1)  # 随机选取一行
        selected_rows = selected_rows.append(random_row)  # 将选取的行添加到结果中
        if target_value in random_row.values:
            break  # 如果选取的行中包含特定值，则停止循环
    return selected_rows

target_value = 3  # 设置特定值
selected_rows = select_rows(df, target_value)
print(selected_rows)