ผู้กระทำผิดในประเทศ "จีน" หรือ "ญี่ปุ่น" ชื่ออะไร?
What are the names of perpetrators in country "China" or "Japan"?
df1 = pd.DataFrame(columns=['People_ID', 'Country']); df2 = pd.DataFrame(columns=['Name', 'People_ID'])
df2[df2['People_ID'].isin(df1[(df1['Country'] == 'China') | (df1['Country'] == 'Japan')]['People_ID'])]['Name']