在tkinter GUI中解决简单的ODE系统

import tkinter as tk
from scipy.integrate import odeint
import numpy as np

window = tk.Tk()
window.title("ODE Solver")

def ode_system(y, t):
    # 定义ODE系统的方程
    dydt = -2 * y
    return dydt

def solve_ode():
    # 获取用户输入的初始条件和时间范围
    y0 = float(entry_y0.get())
    t_start = float(entry_t_start.get())
    t_end = float(entry_t_end.get())
    num_points = int(entry_num_points.get())

    # 创建时间点数组
    t = np.linspace(t_start, t_end, num_points)

    # 解决ODE系统
    y = odeint(ode_system, y0, t)

    # 更新GUI界面，显示解决的结果
    result_text.delete(1.0, tk.END)
    result_text.insert(tk.END, str(y))

# 创建标签和输入框
label_y0 = tk.Label(window, text="初始条件：")
label_y0.grid(row=0, column=0)
entry_y0 = tk.Entry(window)
entry_y0.grid(row=0, column=1)

label_t_start = tk.Label(window, text="起始时间：")
label_t_start.grid(row=1, column=0)
entry_t_start = tk.Entry(window)
entry_t_start.grid(row=1, column=1)

label_t_end = tk.Label(window, text="结束时间：")
label_t_end.grid(row=2, column=0)
entry_t_end = tk.Entry(window)
entry_t_end.grid(row=2, column=1)

label_num_points = tk.Label(window, text="时间点个数：")
label_num_points.grid(row=3, column=0)
entry_num_points = tk.Entry(window)
entry_num_points.grid(row=3, column=1)

# 创建按钮
solve_button = tk.Button(window, text="解决ODE系统", command=solve_ode)
solve_button.grid(row=4, column=0, columnspan=2)

# 创建文本框
result_text = tk.Text(window, height=10, width=30)
result_text.grid(row=5, column=0, columnspan=2)

window.mainloop()