我有这个巨大的功能，我想知道如何使它递归。我有一个永远不应该实现的基本情况，所以它应该总是去 else 并继续用变量 t 增加来调用自己。任何帮助都会非常感谢
def draw(x, y, t, planets):
if 'Satellites' in planets["Moon"]:
print ("fillcircle", x, y, planets["Moon"]['Radius']*scale)
else:
print("refresh")
print("colour 0 0 0")
print("clear")
print("colour 255 255 255")
print("fillcircle",x,y,planets['Sun']['Radius']*scale)
print("text ", "\"Sun\"",x+planets['Sun']['Radius']*scale,y)
if "Mercury" in planets:
r_Mercury=planets['Mercury']['Orbital Radius']*scale;
print("circle",x,y,r_Mercury)
r_Xmer=x+math.sin(t*2*math.pi/planets['Mercury']['Period'])*r_Mercury
r_Ymer=y+math.cos(t*2*math.pi/planets['Mercury']['Period'])*r_Mercury
print("fillcircle",r_Xmer,r_Ymer,3)
print("text ", "\"Mercury\"",r_Xmer+planets['Mercury']['Radius']*scale,r_Ymer)
if "Venus" in planets:
r_Venus=planets['Venus']['Orbital Radius']*scale;
print("circle",x,y,r_Venus)
r_Xven=x+math.sin(t*2*math.pi/planets['Venus']['Period'])*r_Venus
r_Yven=y+math.cos(t*2*math.pi/planets['Venus']['Period'])*r_Venus
print("fillcircle",r_Xven,r_Yven,3)
print("text ", "\"Venus\"",r_Xven+planets['Venus']['Radius']*scale,r_Yven)
if "Earth" in planets:
r_Earth=planets['Earth']['Orbital Radius']*scale;
print("circle",x,y,r_Earth)
r_Xe=x+math.sin(t*2*math.pi/planets['Earth']['Period'])*r_Earth
r_Ye=y+math.cos(t*2*math.pi/planets['Earth']['Period'])*r_Earth
print("fillcircle",r_Xe,r_Ye,3)
print("text ", "\"Earth\"",r_Xe+planets['Earth']['Radius']*scale,r_Ye)
if "Moon" in planets:
r_Moon=planets['Moon']['Orbital Radius']*scale;
print("circle",r_Xe,r_Ye,r_Moon)
r_Xm=r_Xe+math.sin(t*2*math.pi/planets['Moon']['Period'])*r_Moon
r_Ym=r_Ye+math.cos(t*2*math.pi/planets['Moon']['Period'])*r_Moon
print("fillcircle",r_Xm,r_Ym,3)
print("text ", "\"Moon\"",r_Xm+planets['Moon']['Radius']*scale,r_Ym)
if "Mars" in planets:
r_Mars=planets['Mars']['Orbital Radius']*scale;
print("circle",x,y,r_Mars)
r_Xmar=x+math.sin(t*2*math.pi/planets['Mars']['Period'])*r_Mars
r_Ymar=y+math.cos(t*2*math.pi/planets['Mars']['Period'])*r_Mars
print("fillcircle",r_Xmar,r_Ymar,3)
print("text ", "\"Mars\"",r_Xmar+planets['Mars']['Radius']*scale,r_Ymar)
if "Phobos" in planets:
r_Phobos=planets['Phobos']['Orbital Radius']*scale;
print("circle",r_Xmar,r_Ymar,r_Phobos)
r_Xpho=r_Xmar+math.sin(t*2*math.pi/planets['Phobos']['Period'])*r_Phobos
r_Ypho=r_Ymar+math.cos(t*2*math.pi/planets['Phobos']['Period'])*r_Phobos
print("fillcircle",r_Xpho,r_Ypho,3)
print("text ", "\"Phobos\"",r_Xpho+planets['Phobos']['Radius']*scale,r_Ypho)
if "Deimos" in planets:
r_Deimos=planets['Deimos']['Orbital Radius']*scale;
print("circle",r_Xmar,r_Ymar,r_Deimos)
r_Xdei=r_Xmar+math.sin(t*2*math.pi/planets['Deimos']['Period'])*r_Deimos
r_Ydei=r_Ymar+math.cos(t*2*math.pi/planets['Deimos']['Period'])*r_Deimos
print("fillcircle",r_Xdei,r_Ydei,3)
print("text ", "\"Deimos\"",r_Xpho+planets['Deimos']['Radius']*scale,r_Ydei)
if "Ceres" in planets:
r_Ceres=planets['Ceres']['Orbital Radius']*scale;
print("circle",x,y,r_Ceres)
r_Xcer=x+math.sin(t*2*math.pi/planets['Ceres']['Period'])*r_Ceres
r_Ycer=y+math.cos(t*2*math.pi/planets['Ceres']['Period'])*r_Ceres
print("fillcircle",r_Xcer,r_Ycer,3)
print("text ", "\"Ceres\"",r_Xcer+planets['Ceres']['Radius']*scale,r_Ycer)
if "Jupiter" in planets:
r_Jupiter=planets['Jupiter']['Orbital Radius']*scale;
print("circle",x,y,r_Jupiter)
r_Xjup=x+math.sin(t*2*math.pi/planets['Jupiter']['Period'])*r_Jupiter
r_Yjup=y+math.cos(t*2*math.pi/planets['Jupiter']['Period'])*r_Jupiter
print("fillcircle",r_Xjup,r_Yjup,3)
print("text ", "\"Jupiter\"",r_Xjup+planets['Jupiter']['Radius']*scale,r_Yjup)
if "Io" in planets:
r_Io=planets['Io']['Orbital Radius']*scale;
print("circle",r_Xjup,r_Yjup,r_Io)
r_Xio=r_Xjup+math.sin(t*2*math.pi/planets['Io']['Period'])*r_Io
r_Yio=r_Yjup+math.cos(t*2*math.pi/planets['Io']['Period'])*r_Io
print("fillcircle",r_Xio,r_Yio,3)
print("text ", "\"Io\"",r_Xio+planets['Io']['Radius']*scale,r_Yio)
if "Europa" in planets:
r_Europa=planets['Europa']['Orbital Radius']*scale;
print("circle",r_Xjup,r_Yjup,r_Europa)
r_Xeur=r_Xjup+math.sin(t*2*math.pi/planets['Europa']['Period'])*r_Europa
r_Yeur=r_Yjup+math.cos(t*2*math.pi/planets['Europa']['Period'])*r_Europa
print("fillcircle",r_Xeur,r_Yeur,3)
print("text ", "\"Europa\"",r_Xeur+planets['Europa']['Radius']*scale,r_Yeur)
if "Ganymede" in planets:
r_Ganymede=planets['Ganymede']['Orbital Radius']*scale;
print("circle",r_Xjup,r_Yjup,r_Ganymede)
r_Xgan=r_Xjup+math.sin(t*2*math.pi/planets['Ganymede']['Period'])*r_Ganymede
r_Ygan=r_Yjup+math.cos(t*2*math.pi/planets['Ganymede']['Period'])*r_Ganymede
print("fillcircle",r_Xgan,r_Ygan,3)
print("text ", "\"Ganymede\"",r_Xgan+planets['Ganymede']['Radius']*scale,r_Ygan)
if "Callisto" in planets:
r_Callisto=planets['Callisto']['Orbital Radius']*scale;
print("circle",r_Xjup,r_Yjup,r_Callisto)
r_Xcal=r_Xjup+math.sin(t*2*math.pi/planets['Callisto']['Period'])*r_Callisto
r_Ycal=r_Yjup+math.cos(t*2*math.pi/planets['Callisto']['Period'])*r_Callisto
print("fillcircle",r_Xcal,r_Ycal,3)
print("text ", "\"Callisto\"",r_Xcal+planets['Callisto']['Radius']*scale,r_Ycal)
if "Saturn" in planets:
r_Saturn=planets['Saturn']['Orbital Radius']*scale;
print("circle",x,y,r_Saturn)
r_Xsat=x+math.sin(t*2*math.pi/planets['Saturn']['Period'])*r_Saturn
r_Ysat=y+math.cos(t*2*math.pi/planets['Saturn']['Period'])*r_Saturn
print("fillcircle",r_Xsat,r_Ysat,3)
print("text ", "\"Saturn\"",r_Xsat+planets['Saturn']['Radius']*scale,r_Ysat)
if "Mimas" in planets:
r_Mimas=planets['Mimas']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Mimas)
r_Xmim=r_Xsat+math.sin(t*2*math.pi/planets['Mimas']['Period'])*r_Mimas
r_Ymim=r_Ysat+math.cos(t*2*math.pi/planets['Mimas']['Period'])*r_Mimas
print("fillcircle",r_Xmim,r_Ymim,3)
print("text ", "\"Mimas\"",r_Xmim+planets['Mimas']['Radius']*scale,r_Ymim)
if "Enceladus" in planets:
r_Enceladus=planets['Enceladus']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Enceladus)
r_Xenc=r_Xsat+math.sin(t*2*math.pi/planets['Enceladus']['Period'])*r_Enceladus
r_Yenc=r_Ysat+math.cos(t*2*math.pi/planets['Enceladus']['Period'])*r_Enceladus
print("fillcircle",r_Xenc,r_Yenc,3)
print("text ", "\"Enceladus\"",r_Xenc+planets['Enceladus']['Radius']*scale,r_Yenc)
if "Tethys" in planets:
r_Tethys=planets['Tethys']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Tethys)
r_Xtet=r_Xsat+math.sin(t*2*math.pi/planets['Tethys']['Period'])*r_Tethys
r_Ytet=r_Ysat+math.cos(t*2*math.pi/planets['Tethys']['Period'])*r_Tethys
print("fillcircle",r_Xtet,r_Ytet,3)
print("text ", "\"Tethys\"",r_Xtet+planets['Tethys']['Radius']*scale,r_Ytet)
if "Dione" in planets:
r_Dione=planets['Dione']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Dione)
r_Xdio=r_Xsat+math.sin(t*2*math.pi/planets['Dione']['Period'])*r_Dione
r_Ydio=r_Ysat+math.cos(t*2*math.pi/planets['Dione']['Period'])*r_Dione
print("fillcircle",r_Xdio,r_Ydio,3)
print("text ", "\"Dione\"",r_Xdio+planets['Dione']['Radius']*scale,r_Ydio)
if "Rhea" in planets:
r_Rhea=planets['Rhea']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Rhea)
r_Xrhe=r_Xsat+math.sin(t*2*math.pi/planets['Rhea']['Period'])*r_Rhea
r_Yrhe=r_Ysat+math.cos(t*2*math.pi/planets['Rhea']['Period'])*r_Rhea
print("fillcircle",r_Xrhe,r_Yrhe,3)
print("text ", "\"Rhea\"",r_Xrhe+planets['Rhea']['Radius']*scale,r_Yrhe)
if "Titan" in planets:
r_Titan=planets['Titan']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Titan)
r_Xtit=r_Xsat+math.sin(t*2*math.pi/planets['Titan']['Period'])*r_Titan
r_Ytit=r_Ysat+math.cos(t*2*math.pi/planets['Titan']['Period'])*r_Titan
print("fillcircle",r_Xtit,r_Ytit,3)
print("text ", "\"Titan\"",r_Xtit+planets['Titan']['Radius']*scale,r_Ytit)
if "Iapetus" in planets:
r_Iapetus=planets['Iapetus']['Orbital Radius']*scale;
print("circle",r_Xsat,r_Ysat,r_Iapetus)
r_Xiap=r_Xsat+math.sin(t*2*math.pi/planets['Iapetus']['Period'])*r_Iapetus
r_Yiap=r_Ysat+math.cos(t*2*math.pi/planets['Iapetus']['Period'])*r_Iapetus
print("fillcircle",r_Xiap,r_Yiap,3)
print("text ", "\"Iapetus\"",r_Xiap+planets['Iapetus']['Radius']*scale,r_Yiap)
if "Uranus" in planets:
r_Uranus=planets['Uranus']['Orbital Radius']*scale;
print("circle",x,y,r_Uranus)
r_Xura=x+math.sin(t*2*math.pi/planets['Uranus']['Period'])*r_Uranus
r_Yura=y+math.cos(t*2*math.pi/planets['Uranus']['Period'])*r_Uranus
print("fillcircle",r_Xura,r_Yura,3)
print("text ", "\"Uranus\"",r_Xura+planets['Uranus']['Radius']*scale,r_Yura)
if "Puck" in planets:
r_Puck=planets['Puck']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Puck)
r_Xpuc=r_Xura+math.sin(t*2*math.pi/planets['Puck']['Period'])*r_Puck
r_Ypuc=r_Yura+math.cos(t*2*math.pi/planets['Puck']['Period'])*r_Puck
print("fillcircle",r_Xpuc,r_Ypuc,3)
print("text ", "\"Puck\"",r_Xpuc+planets['Puck']['Radius']*scale,r_Ypuc)
if "Miranda" in planets:
r_Miranda=planets['Miranda']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Miranda)
r_Xmira=r_Xura+math.sin(t*2*math.pi/planets['Miranda']['Period'])*r_Miranda
r_Ymira=r_Yura+math.cos(t*2*math.pi/planets['Miranda']['Period'])*r_Miranda
print("fillcircle",r_Xmira,r_Ymira,3)
print("text ", "\"Miranda\"",r_Xmira+planets['Miranda']['Radius']*scale,r_Ymira)
if "Ariel" in planets:
r_Ariel=planets['Ariel']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Ariel)
r_Xari=r_Xura+math.sin(t*2*math.pi/planets['Ariel']['Period'])*r_Ariel
r_Yari=r_Yura+math.cos(t*2*math.pi/planets['Ariel']['Period'])*r_Ariel
print("fillcircle",r_Xari,r_Yari,3)
print("text ", "\"Ariel\"",r_Xari+planets['Ariel']['Radius']*scale,r_Yari)
if "Umbriel" in planets:
r_Umbriel=planets['Umbriel']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Umbriel)
r_Xumb=r_Xura+math.sin(t*2*math.pi/planets['Umbriel']['Period'])*r_Umbriel
r_Yumb=r_Yura+math.cos(t*2*math.pi/planets['Umbriel']['Period'])*r_Umbriel
print("fillcircle",r_Xumb,r_Yumb,3)
print("text ", "\"Umbriel\"",r_Xumb+planets['Umbriel']['Radius']*scale,r_Yumb)
if "Titania" in planets:
r_Titania=planets['Titania']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Titania)
r_Xtita=r_Xura+math.sin(t*2*math.pi/planets['Titania']['Period'])*r_Titania
r_Ytita=r_Yura+math.cos(t*2*math.pi/planets['Titania']['Period'])*r_Titania
print("fillcircle",r_Xtita,r_Ytita,3)
print("text ", "\"Titania\"",r_Xtita+planets['Titania']['Radius']*scale,r_Ytita)
if "Oberon" in planets:
r_Oberon=planets['Oberon']['Orbital Radius']*scale;
print("circle",r_Xura,r_Yura,r_Oberon)
r_Xober=r_Xura+math.sin(t*2*math.pi/planets['Oberon']['Period'])*r_Oberon
r_Yober=r_Yura+math.cos(t*2*math.pi/planets['Oberon']['Period'])*r_Oberon
print("fillcircle",r_Xober,r_Yober,3)
print("text ", "\"Oberon\"",r_Xober+planets['Oberon']['Radius']*scale,r_Yober)
if "Neptune" in planets:
r_Neptune=planets['Neptune']['Orbital Radius']*scale;
print("circle",x,y,r_Neptune)
r_Xnep=x+math.sin(t*2*math.pi/planets['Neptune']['Period'])*r_Neptune
r_Ynep=y+math.cos(t*2*math.pi/planets['Neptune']['Period'])*r_Neptune
print("fillcircle",r_Xnep,r_Ynep,3)
print("text ", "\"Neptune\"",r_Xnep+planets['Neptune']['Radius']*scale,r_Ynep)
if "Titan" in planets:
r_Titan=planets['Titan']['Orbital Radius']*scale;
print("circle",r_Xnep,r_Ynep,r_Titan)
r_Xtita=r_Xnep+math.sin(t*2*math.pi/planets['Titan']['Period'])*r_Titan
r_Ytita=r_Ynep+math.cos(t*2*math.pi/planets['Titan']['Period'])*r_Titan
print("fillcircle",r_Xtita,r_Ytita,3)
print("text ", "\"Titan\"",r_Xtita+planets['Titan']['Radius']*scale,r_Ytita)
t += 0.003
draw(x, y, t, planets)
def draw(x, y, t, planets):
if 'Satellites' in planets["Moon"]:
print ("fillcircle", x, y, planets["Moon"]['Radius']*scale)
else:
print("refresh")
print("colour 0 0 0")
print("clear")
print("colour 255 255 255")
print("fillcircle",x,y,planets['Sun']['Radius']*scale)
print("text ", "\"Sun\"",x+planets['Sun']['Radius']*scale,y)
for each in planets.keys():
r_planet=planets[each]['Orbital Radius']*scale;
print("circle", x, y, r_planet)
#if "Period" in planets[each]:
#r_X = x+math.sin(t*2*math.pi/planets[each]['Period'])*r_planet
#r_Y = y+math.cos(t*2*math.pi/planets[each]['Period'])*r_planet
#print("fillcircle",r_X,r_Y,3)
#print("text ", each, r_X+planets[each]['Radius']*scale,r_Y)
#t += 0.003
print(draw(x, y, t, planets))
我将绘图修剪到上面它计算圆圈的位置但不在quickdraw中打印它？