df=pd.read_excel("sjb.xlsx")
方框中代码由下列语句中的部分语句组成:
①df_g=df.groupby('组别',as_index=False).max()
②df_g=df_s.groupby('进球',as_index=False).max()
③df_s=df.sort_values('进球',ascending=True)
④df_s=df_g.sort_values('进球',ascending=False)
要实现上述功能,下列选项正确的是( )
A.①④ | B.①③ | C.②④ | D.③② |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2