这很像一个旅行推销员问题。我有一个包含大学名称的列表框(以我从 Facebook 图表中获取的坐标为后盾)。我将选择模式设置为多个。我需要知道允许我使用他们选择的大学的代码,以便我可以通过距离方法对他们进行介绍。我只需要知道代码就可以看到他们选择了什么。我尝试使用 curselection() 但我仍然不明白。
这是一些代码:
self.listbox = Listbox(self.mid_frame,width = 42,selectmode ="multiple",
highlightcolor = "orange",
highlightthickness = "10",bd = "5")
coordinates = []
collegelist = []
f = open(sys.argv[1],'r')
# grab the college's lat and long from facebook graph
for identity in f:
urlquery='https://graph.facebook.com/'+identity
obj = json.load(urllib2.urlopen(urlquery))
college = obj["name"]
latitude = obj["location"]["latitude"]
longitude = obj["location"]["longitude"]
coordinates.append((college,latitude, longitude))
collegelist.append(college)
#sort the colleges so they appear alphabetical order
sortcollege = sorted(collegelist)
#fill Listbox with the College names imported from a text file
for college in sortcollege:
self.listbox.insert(END, college)
self.listbox.pack(side = LEFT)
#The label where I would put the total distance
self.output_totaldist_label = Label(self.mid_frame,
width = 11,
textvariable = self.totaldistance)
self.totaldistance = StringVar()
self.output_label = Label(self.mid_frame,
textvariable = self.totaldistance)
self.output_totaldist_label.pack(side = LEFT)
self.output_label.pack(side = LEFT)