文件实现
文件实现
提问于 2017-07-20 23:53:23
我目前正在尝试从我用如下所示的函数“浏览”定义的外部文件中插入数据，而这些数据要在我分成3部分的列表框中实现，外部文件中的数据只是下面显示的一些日期和数字。有人能帮我找出如何在列表框中实现数据，如下图所示。P.S 数据柴油()函数是在我难以解决的列表框中实现文件后，手动获取日期的日期选择。最后，日期列表框必须是整数，如图2.数据文件链接中所示。
第一张图片中的当前结果
结果我需要第二张照片
通过Button 1实现的数据文件图片#3
from Tkinter import *
import tkFont , time
import ttk,csv,sys,os
import Tkinter,tkFileDialog
class Application(Frame):
def __init__(self,root):
Frame.__init__(self,root)
self.root=root
self.function1()
self.function2()
def function1(self): #tell the machine we are having new widget
self.frame1 = Frame(self.root)
self.frame3 = Frame(self.root, bg="lightblue", borderwidth=2, relief=GROOVE)
self.label1 = Label(self.frame1, text="Upload Acitivity File:")
self.first_button = Button(self.frame1, text="Button 1",command=self.browse)
#Start date selector
self.Sdate = Label(self.frame3, text="Start Date(dd/mm/yy): ")
self.Slb = Listbox(self.frame3, width = 6,height = 8,selectmode='multiple',exportselection=0)
self.Slb2 = Listbox(self.frame3, width=6, height=8,selectmode='multiple',exportselection=0)
self.Slb3 = Listbox(self.frame3, width=6, height=8,selectmode='multiple',exportselection=0)
def function2(self): # # tell the machine where our widget will be
self.frame1.pack()
self.frame3.pack()
self.label1.pack(padx=5, pady=10, side=LEFT)
self.first_button.pack(side=LEFT)
#start and end date
self.Sdate.grid(row =0,column=0)
self.Slb.grid(row =0,column=1)
self.Slb2.grid(row=0, column=2)
self.Slb3.grid(row=0, column=3)
def browse(self):
file = tkFileDialog.askopenfile(mode='rb', title='Choose a file')
self.data = csv.reader(file)
self.datalist = []
for row in self.data:
if len(row) != 0:
self.datalist = self.datalist + [row]
self.datalist.sort()
print self.datalist
def datesel(self):
# get selected line index
self.index = self.Slb.curselection()[0]
# get the line's text
self.seltext = self.Slb.get(self.index)
print self.seltext
self.index2 = self.Slb2.curselection()[0]
self.seltext2 = self.Slb2.get(self.index2)
print self.seltext2
self.index3 = self.Slb3.curselection()[0]
self.seltext3 = self.Slb3.get(self.index3)
print self.seltext3
self.Slist = [self.seltext,self.seltext2,self.seltext3]
self.Slist.sort(0,END)
print self.Slist
def main():
parent=Tk() # main frame
parent.geometry('600x600+300+30') #The height and width of the program
parent.title('Motion Tracker')#assign the title of the program
app = Application(parent)
parent.mainloop()#keeps the program running for infinite amount of time
main()回答 2
Stack Overflow用户
回答已采纳
发布于 2017-07-21 05:58:41
我不明白为什么要将日期、月份和年份放在单独的列表框中，但无论如何，下面的代码显示了如何以第二张图片显示的方式填充3个列表框。我已经将代码压缩到最低限度，并将文件名硬编码到类中，但这很容易修复。
import Tkinter as tk
class Application(tk.Frame):
def __init__(self, root):
tk.Frame.__init__(self, root)
self.pack()
self.root = root
self.do_listboxes()
def do_listboxes(self):
tk.Button(self, text="Get dates", command=self.fill_dates).pack()
self.Slb1 = tk.Listbox(self, width=6, height=8, selectmode='multiple', exportselection=0)
self.Slb2 = tk.Listbox(self, width=6, height=8, selectmode='multiple', exportselection=0)
self.Slb3 = tk.Listbox(self, width=6, height=8, selectmode='multiple', exportselection=0)
self.Slb1.pack(side=tk.LEFT)
self.Slb2.pack(side=tk.LEFT)
self.Slb3.pack(side=tk.LEFT)
def fill_dates(self):
fname = 'dkebz.txt'
# Use sets to get rid of duplicated days, months, and years
days, mons, yrs = set(), set(), set()
with open(fname, 'r') as f:
#Skip header
next(f)
for row in f:
# Extract the date from the row
date = row.split(',')[1]
# Extract the day, month, and year from the date
day, mon, yr = date.split('/')
days.add(day)
mons.add(mon)
yrs.add(yr)
# Populate the list boxes
for day in sorted(days):
self.Slb1.insert(tk.END, day)
for mon in sorted(mons):
self.Slb2.insert(tk.END, mon)
for yr in sorted(yrs):
self.Slb3.insert(tk.END, yr)
def main():
parent = tk.Tk()
parent.title('Motion Tracker')
app = Application(parent)
parent.mainloop()
main()我使用的是import Tkinter as tk而不是from Tkinter import *。“星号”导入将175 Tkinter名称放入您的命名空间(在Python 3,136个名称中)，这很麻烦，并且可能导致名称冲突，特别是当您进行其他“星星”导入时。使用import Tkinter as tk意味着您必须在每个Tkinter名称之前加上tk.，所以它需要更多的输入，但它使代码更容易阅读，因为每个名称的来源都很清楚。
Stack Overflow用户
发布于 2017-07-21 02:03:09
为此，只需修改浏览方法即可。我对数据进行了硬编码，以反映你的文件图像显示的内容。因此，如果数据正是您所提供的，这是可行的。如果它对您有效，请取消注释我注释的2行，并删除我编写的self.data列表定义。
def browse(self):
file = tkFileDialog.askopenfile(title='Choose a file')
try:
with open(file, 'r') as reader:
self.data = list(reader)
except:
raise
self.datalist = []
for row in self.data:
if len(row) != 0 and not row.startswith('Activity'):
self.datalist = self.datalist + [row]
activity, date, steps = row.split(',')
month, day, year = date.split('/')
self.Slb.insert(END, month)
self.Slb2.insert(END, day)
self.Slb3.insert(END, year)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/45226887
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