看这样行不行
from scipy.integrate import odeint
import numpy as np
import matplotlib.pyplot as plt
def dx_dt(x,t):
return -3*t*x**3+np.sin(t)+np.cos(2*t)
x0 = input('请输入x0: ')
t = np.arange(0, 10, 0.01)
x = odeint(dx_dt,x0,t)
plt.plot(t, x)
plt.title("picture")
plt.show()