需要使用 Tkinter 和 Python 为 km 或 mi 创建选项
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【中文标题】需要使用 Tkinter 和 Python 为 km 或 mi 创建选项【英文标题】:Need to create option for km or mi using Tkinter and Python 【发布时间】:2021-03-07 23:15:51 【问题描述】:所以下面我找到并修改了一个代码,用于计算两个位置之间的距离。我正在为简单的用户输入创建一个 GUI。一切都按预期工作,但如果我能完成两件事,那将是一个奖励。
有一个切换或选择可以让我以 KM 或 Mi 显示距离
有什么办法可以将输出四舍五入,使其小数点后没有那么多数字?
我假设它必须是基于对象选择的某种类型的变量?
# import modules from tkinter import * from geopy.geocoders import Nominatim from geopy import distance # user defined funtion def get_dis(): try: geolocator = Nominatim(user_agent="geoapiExercises") place1 = geolocator.geocode(str(e1.get())) place2 = geolocator.geocode(str(e2.get())) Loc1_lat,Loc1_lon = (place1.latitude),(place1.longitude) Loc2_lat,Loc2_lon = (place2.latitude),(place2.longitude) location1=(Loc1_lat,Loc1_lon) location2=(Loc2_lat,Loc2_lon) res = (str(distance.distance(location1, location2).mi)+" Mi") result.set(res) except: result.set("someting went wrong") # object of tkinter # with background set to light grey master = Tk() master.configure(bg='light grey') master.title("Find Distance") # Variable Classes in tkinter result = StringVar(); # Creating label for each information # name using widget Label Label(master, text="Start Location : " , bg = "light grey").grid(row=1, sticky=W) Label(master, text="End Location : " , bg = "light grey").grid(row=2, sticky=W) Label(master, text="Result :", bg = "light grey").grid(row=3, sticky=W) # Creating label for class variable # name using widget Entry Label(master, text="", textvariable=result,bg = "light grey").grid(row=3,column=1, sticky=W) e1 = Entry(master,width = 50) e1.grid(row=1, column=1) e2 = Entry(master,width = 50) e2.grid(row=2, column=1) # creating a button using the widget b = Button(master, text="Check", command=get_dis, bg = "white") b.grid(row=1, column=2,columnspan=2, rowspan=2,padx=5, pady=5,) mainloop()
用注释编辑.. 不能圆
import modules from tkinter import * from geopy.geocoders import Nominatim from geopy import distance
用户定义函数 def get_dis():
try: geolocator = Nominatim(user_agent="geoapiExercises") place1 = geolocator.geocode(str(e1.get())) place2 = geolocator.geocode(str(e2.get())) Loc1_lat,Loc1_lon = (place1.latitude),(place1.longitude) Loc2_lat,Loc2_lon = (place2.latitude),(place2.longitude) location1=(Loc1_lat,Loc1_lon) location2=(Loc2_lat,Loc2_lon) res = (str(distance.distance(location1, location2) .km)+" Km") result.set(res) except: result.set("someting went wrong") def get_dis(): if unit.get() == 'mi': res = str(round(distance.distance(location1, location2).mi, 2))+" Mi" else: res = str(round(distance.distance(location1, location2).km, 2))+" km"
tkinter 的对象
背景设置为浅灰色 master = Tk() master.configure(bg='light gray') master.title("Find Distance")
tkinter 中的变量类结果 = StringVar();标签(master, text="", textvariable=result,bg = "浅灰色").grid(row=4,column=1,
粘性=W)
为每个信息创建标签
name using widget Label Label(master, text="Start Location : " , bg = "light gray").grid(row=1, sticky=W) Label(master, text="End
位置 : " , bg = "浅灰色").grid(row=2,sticky=W) 标签(master, text="距离:", bg = "浅灰色").grid(row=3, 粘性=W)
为类变量创建标签
name using widget Entry Label(master, text="Unit :", bg="light gray").grid(row=3, sticky=W) Label(master, text="Result :", bg =
"浅灰色").grid(row=4,sticky=W) e1 = Entry(master,width = 50) e1.grid(row=1, column=1) e2 = Entry(master,width = 50) e2.grid(row=2, column=1)
f1 = Frame(master) f1.grid(row=3, column=1,sticky=W) unit = StringVar(value="mi") 单选按钮(f1, text="miles", value="mi", variable=unit, bg="浅灰色").pack(side="left") Radiobutton(f1, text="km", value="km", 变量=单位, bg="light 灰色").pack(side="left")
使用小部件创建按钮 b = Button(master, text="Calculate", command=get_dis, bg = "white") b.grid(row=1,
column=2,columnspan=2, rowspan=2,padx=5, pady=5,) mainloop()
【问题讨论】:
请在您的问题中提供正确的格式。这种格式非常不切实际且难以阅读,以至于我们无法修复它。我们无法确定其中一些粗体线是否旨在成为代码中的 cmets。 【参考方案1】:首先在结果行前添加两个单选按钮:
Label(master, text="Unit :", bg="light gray").grid(row=3, sticky=W)
Label(master, text="Result :", bg = "light grey").grid(row=4, sticky=W) # changed to row 4
...
f1 = Frame(master)
f1.grid(row=3, column=1, sticky=W)
unit = StringVar(value="mi")
Radiobutton(f1, text="miles", value="mi", variable=unit, bg="light gray").pack(side="left")
Radiobutton(f1, text="km", value="km", variable=unit, bg="light gray").pack(side="left")
result = StringVar();
Label(master, text="", textvariable=result,bg = "light grey").grid(row=4,column=1, sticky=W) # changed to row 4
然后根据get_dis()
里面选择的单位调用对应的函数:
def get_dis():
try:
...
if unit.get() == 'mi':
res = str(round(distance.distance(location1, location2).mi, 3))+" Mi"
else:
res = str(round(distance.distance(location1, location2).km, 3))+" km"
...
请注意,round(..., 3)
用于将结果四舍五入到小数点后 3 位。
【讨论】:
谢谢,我想除了四舍五入之外,我的一切都正常了……似乎根本不想四舍五入 添加了我在上面更新的内容,如果你可以看看【参考方案2】:# import modules
from tkinter import *
from geopy.geocoders import Nominatim
from geopy import distance
# user defined funtion
def get_dis():
geolocator = Nominatim(user_agent="geoapiExercises")
place1 = geolocator.geocode(str(e1.get()))
place2 = geolocator.geocode(str(e2.get()))
Loc1_lat,Loc1_lon = (place1.latitude),(place1.longitude)
Loc2_lat,Loc2_lon = (place2.latitude),(place2.longitude)
location1=(Loc1_lat,Loc1_lon)
location2=(Loc2_lat,Loc2_lon)
res = (str(distance.distance(location1, location2) .km)+" Km")
if unit.get() == 'mi':
res = str(round(distance.distance(location1, location2).mi, 2))+" Mi"
else:
res = str(round(distance.distance(location1, location2).km, 2))+" km"
result.set(res)
# object of tkinter
# with background set to light grey
master = Tk()
master.configure(bg='light grey')
master.title("Find Distance")
# Variable Classes in tkinter
result = StringVar();
Label(master, text="", textvariable=result,bg = "light grey").grid(row=4,column=1, sticky=W)
# Creating label for each information
# name using widget Label
Label(master, text="Start Location : " , bg = "light grey").grid(row=1, sticky=W)
Label(master, text="End Location : " , bg = "light grey").grid(row=2, sticky=W)
# Creating label for class variable
# name using widget Entry
Label(master, text="Unit :", bg="light gray").grid(row=3, sticky=W)
Label(master, text="Result :", bg = "light grey").grid(row=4, sticky=W)
e1 = Entry(master,width = 50)
e1.grid(row=1, column=1)
e2 = Entry(master,width = 50)
e2.grid(row=2, column=1)
f1 = Frame(master)
f1.grid(row=3, column=1, sticky=W)
unit = StringVar(value="mi")
Radiobutton(f1, text="miles", value="mi", variable=unit, bg="light gray").pack(side="left")
Radiobutton(f1, text="km", value="km", variable=unit, bg="light gray").pack(side="left")
# creating a button using the widget
b = Button(master, text="Calculate", command=get_dis, bg = "white")
b.grid(row=1, column=2,columnspan=2, rowspan=2,padx=5, pady=5,)
mainloop()
【讨论】:
【参考方案3】:由于我们已经使用check
按钮获得了其中一个单位的距离......让我们使用它。我们将它的结果转换为另一个。将Check
更改为Distance in miles
,为KM
添加了一个新按钮。创建一个将英里转换为公里的函数。然后是调用这两个函数的函数。Two
。这将以英里(get_dis
)为单位获得距离并转换为公里(km_mi
)。结果将没有小数。我用int
。如果你想要小数,你可以使用round
,如另一个答案中所建议的那样。
from tkinter import *
from geopy.geocoders import Nominatim
from geopy import distance
# user defined function
def get_dis():
try:
global res
geolocator = Nominatim(user_agent="geoapiExercises")
place1 = geolocator.geocode(str(e1.get()))
place2 = geolocator.geocode(str(e2.get()))
Loc1_lat, Loc1_lon = (place1.latitude), (place1.longitude)
Loc2_lat, Loc2_lon = (place2.latitude), (place2.longitude)
location1 = (Loc1_lat, Loc1_lon)
location2 = (Loc2_lat, Loc2_lon)
res = int(distance.distance(location1, location2).mi)
return result.set(res)
except Exception as e:
print(e)
def km_mki():
miles = res
conv_fac = 1.609 # conversion factor
# calculating how many kilometers
kilometers = miles * conv_fac
return result.set(int(kilometers))
def two():
get_dis()
km_mki()
# object of tkinter
# with background set to light grey
master = Tk()
master.configure(bg='light grey')
master.title("Find Distance")
# Variable Classes in tkinter
result = StringVar()
# Creating label for each information
# name using widget Label
Label(master, text="Start Location : ", bg="light grey").grid(row=1, sticky=W)
Label(master, text="End Location : ", bg="light grey").grid(row=2, sticky=W)
Label(master, text="Result :", bg="light grey").grid(row=3, sticky=W)
# Creating label for class variable
# name using widget Entry
Label(master, text="", textvariable=result, bg="light grey").grid(row=3, column=1, sticky=W)
e1 = Entry(master, width=50)
e1.grid(row=1, column=1)
e2 = Entry(master, width=50)
e2.grid(row=2, column=1)
# creating a button using the widget
b = Button(master, text="Get distance in Miles", command=get_dis, bg="white")
b.grid(row=1, column=2, columnspan=2, rowspan=2, padx=5, pady=5, )
b1 = Button(master, text="Get distance in Km", command=two, bg="white")
b1.grid(row=3, column=2, columnspan=2, rowspan=3, padx=5, pady=5, )
mainloop()
【讨论】:
请求用户复制粘贴我的代码,请让我知道答案有什么问题。谢谢。以上是关于需要使用 Tkinter 和 Python 为 km 或 mi 创建选项的主要内容,如果未能解决你的问题,请参考以下文章
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