单击按钮时程序不会暂停

Question

我想通过能够停止我的模拟。我准确地复制并粘贴了GlowScript文档的代码。但当按下暂停按钮时，它根本不会发生任何事情。唯一的问题是，它会将按钮中写入的内容更改为文本。我也有一个重置按钮，可以很好地工作。Pause/Run在代码的开头。我还提供了其他代码细节，因为我认为它必须对这些部分进行smth。因为我刚从Glowscript文档中复制了它(运行/暂停)

from vpython import *


running = True

def Run(b):
    global running
    running = not running
    if running: b.text = "Pause"
    else: b.text = "Run"

button(text="Pause", pos=scene.title_anchor, bind=Run)

def Reset(c):
    global t, e

    t=0
    e.pos = vec(ae,0,0)
    e.velocity = vec(0,0,-25000)

button(text ="Reset", pos=scene.title_anchor, bind=Reset)


#other constants for calc. ...

framerate = 100



#sun
s = sphere(pos = vec(0,0,0), radius = s_rad1, color=color.orange, make_trail = True ) 
s.mass = 2e30   
s.velocity = vec(0,0,0)


#earth
e = sphere (pos = vec(ae, 0, 0), radius = e_rad, make_trail = True, color = color.blue)

e.mass = 5.9e24    
e.velocity = vec(0,0,-25000)#bewegt sich mit 30000 ms




dt = 50000
time = 0.1



while (True):

    rate(framerate)  


    g_force = g * s.mass * e.mass * (s.pos - e.pos).norm()  / (s.pos - e.pos).mag2

    g_forceS = -g_force

    s.velocity = s.velocity + ( g_forceS / s.mass) * dt #Richtungsänderung

    s.pos += s.velocity * dt 



    e.velocity = e.velocity + ( g_force / e.mass) * dt #Richtungsänderung


    e.pos += e.velocity * dt 

Answer 1

你的Run函数改变了全局可验证的"running"，但是你的动画循环并不关注这个变量。你需要这样的东西：

while True: rate(帧率)如果正在运行: g_force = .....