如何在tkin中保存正确的文件

Question

其思想是当用户启动循环程序时，它必须生成一个文件，并将一些数据保存到其中。因此，用户输入号码，选择一个目录，然后程序启动。但是循环的每次计数都有问题。它要求再次选择一个目录，然后就出现了TypeError

from tkinter import *
from tkinter import ttk
from tkinter import filedialog
import os
import datetime
import csv
import threading


class Application(Frame):
    def __init__(self, master):
        super().__init__(master)
        self.master = master
        self.mainframe = ttk.Frame(master, padding='5 5 10 10')
        self.mainframe.grid(column=0, row=0, sticky=N + S + W + E)
        self.measureFrame()
        self.connectionConf()
        self.meas()

    def connectionConf(self):
        self.confFrame = ttk.Frame(self.mainframe, padding='5 5 10 10').grid(column=0, row=3)
        self.confFreq = Label(self.confFrame, text='Number:')
        self.confFreq.grid(column=1, row=4, pady=5, stick=W)
        self.freqSet = Entry(self.confFrame, width=6)
        self.freqSet.grid(column=2, row=4, pady=5, stick=W)

    def measureFrame(self):
        self.name = StringVar()
        self.mesFrame = ttk.Frame(self.mainframe, padding='5 5 10 10').grid(column=0, row=5)
        self.mesHeader = Label(self.mesFrame, text='Path to save', font=10).grid(column=1, row=5, columnspan=2
                                                                                         , pady=10, stick=W)
        self.ent1 = Entry(self.mesFrame, textvariable=self.name, width=50)
        self.ent1.grid(column=1, row=7, columnspan=3, pady=5, stick=W)
        self.button1 = Button(self.mesFrame, text='Open', command=self.browseButton)
        self.button1.grid(column=4, row=7, pady=5, stick=W)

    def browseButton(self):
        filedir = filedialog.askdirectory()
        filedir = self.name.set(filedir)
        return filedir

    def meas(self):
        self.mesframe = ttk.Frame(self.mainframe, padding='5 5 10 10').grid(column=0, row=8)
        self.startb = Button(self.mesframe, text='Start',
                             command=lambda: threading.Thread(target=self.startMeas).start())
        self.startb.grid(column=1, row=10, pady=5, stick=W)

    def filename_gen(self):
        basename = self.freqSet.get()
        suffix = datetime.datetime.now().strftime('%Y-%m-%d-%H%M%S')
        filetype = '.csv'
        genfile = '_'.join([suffix, basename, filetype])
        ressfile = os.path.join(self.browseButton(), genfile)
        return ressfile

    def startMeas(self):
        with open(self.filename_gen(), 'a', newline='') as marks_csv:
            cur_mark = 'None'
            marks_wr = csv.writer(marks_csv)
            marks_wr.writerow(cur_mark)
        self.after(1000, self.startMeas)


window = Tk()
window.geometry('700x600')
app = Application(master=window)
app.columnconfigure(0, weight=1)
app.rowconfigure(0, weight=1)
app.mainloop()
window.quit()

Answer 1

在第53行，您再次调用self.browsebutton，替换为self.name.get()，代码工作正常

问题是您再次调用该函数，而不是使用上次选择目录时存储在字符串var中的预设名称

我的意思是，这句话：

ressfile = os.path.join(self.browsebutton(), genfile)

应替换为：

ressfile = os.path.join(self.name.get(), genfile)