左右纵坐标轴

import numpy as np
from mpl_toolkits.axisartist.parasite_axes import HostAxes, ParasiteAxes
import matplotlib.pyplot as plt
import matplotlib as mpl
mpl.rcParams["font.sans-serif"] = ["Times New Roman"]
mpl.rcParams["axes.unicode_minus"] = False
x = ['0', '60', '82', '84', '115', '115', '180']
A=[0.0,0.3333333333333333,0.44,0.48,0.6388888888888888,0.6388888888888888,1.0]
k1 = [49.160,47.367,26.858,30.315,16.552,28.590,23.905,18.818,28.735,6.721,10.315,20]
k2 = [49.160,47.367,26.858,30.315,16.552,28.590,23.905,18.818,28.735,6.721,10.315,20]
k3 = [49.160,47.367,26.858,30.315,16.552,28.590,23.905,18.818,28.735,6.721,10.315,20]
k4 = [49.160,47.367,26.858,30.315,16.552,28.590,23.905,18.818,28.735,6.721,10.315,20]
k5 = [49.160,47.367,26.858,30.315,16.552,28.590,23.905,18.818,28.735,6.721,10.315,20]
k6 = [49.160,47.367,