Question

首先，我不得不说我是Python的初学者。这是我创建课程的第一步。现在我的问题。On that picture，我提出了我的代码应该运作的内容。

启动程序（运行）
检查应该打开哪些仪器。有三种可能性，您可以为一个，两个或所有三个单位供电同时。（电力#A / B / C）
此外，每增加一个功率单元，您就可以开启温度传感器（温度＃A，B，C）
取决于运行Loop＃A，＃B，＃C或例如两个单位＃B，＃C或者也许全部三个。这实际上是我的问题和问题。怎么能同时也在同时，运行两个甚至三个循环？

我希望你能给我一些建议，帮助我解决问题。

下面我将放置我的代码，以便您可以参考并支付注意我可以在代码中更改或改进的内容。

import Tkinter
import visa, time, datetime
from ttk import *
from tkFileDialog import *
import tkMessageBox, os
import numpy as np

rm = visa.ResourceManager()
inst = rm.list_resources()

class Interface:

    def __init__(self, parent):
        self.parent = parent
        parent.title("Cycling")
        local_directory = os.path.dirname(os.path.realpath(__file__))
        self.dataname = "/does/not/exist"

    # Frame
        self.frame_instruments = Tkinter.Frame(parent, bg='', colormap='new')
        self.frame_settings = Tkinter.Frame(parent, bg='', colormap='new')
        self.frame_image = Tkinter.Frame(parent, bg='', colormap='new')

    # Labelframe
        self.lframe_instrumet_a = Tkinter.LabelFrame(self.frame_instruments, text="Choose an Instruments - #A", padx=8, pady=9)
        self.lframe_settings_a = Tkinter.LabelFrame(self.frame_instruments, text="Settings - #A", padx=7, pady=11)

        self.lframe_instrumet_b = Tkinter.LabelFrame(self.frame_instruments, text="Choose an Instruments - #B", padx=8, pady=9)
        self.lframe_settings_b = Tkinter.LabelFrame(self.frame_instruments, text="Settings - #B", padx=7, pady=11)

        self.lframe_instrumet_c = Tkinter.LabelFrame(self.frame_instruments, text="Choose an Instruments - #C", padx=8, pady=9)
        self.lframe_settings_c = Tkinter.LabelFrame(self.frame_instruments, text="Settings - #C", padx=7, pady=11)

    # Combobox
        #A
        self.choices_power_supply_a_var = Tkinter.StringVar()
        self.choices_power_supply_a_var.set(inst[0])
        self.combo_power_supply_a = Combobox(self.lframe_instrumet_a, values=inst, textvariable=self.choices_power_supply_a_var)

        self.choices_multimeter_a_var = Tkinter.StringVar()
        self.choices_multimeter_a_var.set(inst[0])
        self.combo_multimeter_a = Combobox(self.lframe_instrumet_a, values=inst, textvariable=self.choices_multimeter_a_var)

        #B
        self.choices_power_supply_b_var = Tkinter.StringVar()
        self.choices_power_supply_b_var.set(inst[0])
        self.combo_power_supply_b = Combobox(self.lframe_instrumet_b, values=inst, textvariable=self.choices_power_supply_b_var)

        self.choices_multimeter_b_var = Tkinter.StringVar()
        self.choices_multimeter_b_var.set(inst[0])
        self.combo_multimeter_b = Combobox(self.lframe_instrumet_b, values=inst, textvariable=self.choices_multimeter_b_var)

        #C
        self.choices_power_supply_c_var = Tkinter.StringVar()
        self.choices_power_supply_c_var.set(inst[0])
        self.combo_power_supply_c = Combobox(self.lframe_instrumet_c, values=inst, textvariable=self.choices_power_supply_c_var)

        self.choices_multimeter_c_var = Tkinter.StringVar()
        self.choices_multimeter_c_var.set(inst[0])
        self.combo_multimeter_c = Combobox(self.lframe_instrumet_c, values=inst, textvariable=self.choices_multimeter_c_var)

    # Menu
        menu = Tkinter.Menu(parent, tearoff=0)
        parent.config(menu=menu)
        filemenu = Tkinter.Menu(parent, tearoff=0)
        menu.add_cascade(label='File', menu=filemenu)
        filemenu.add_command(label='Create New File...', command=lambda: self.save_file())
        helpmenu = Tkinter.Menu(menu, tearoff=0)
        menu.add_cascade(label='?', menu=helpmenu)
        helpmenu.add_command(label='About', command=lambda: self.about())

    # Label
        #A
        self.label_power_supply_a = Tkinter.Label(self.lframe_instrumet_a, text="Power Supply 2200: ")
        self.label_multimeter_a = Tkinter.Label(self.lframe_instrumet_a, text="Multimeter 2700: ")
        self.label_voltage_range_a = Tkinter.Label(self.lframe_settings_a, text='Voltage Range [V]')
        self.label_over_voltage_a = Tkinter.Label(self.lframe_settings_a, text='Over Voltage Protection [V]')
        self.label_voltage_set_a = Tkinter.Label(self.lframe_settings_a, text='Set Voltage [V]')
        self.label_heat_set_a = Tkinter.Label(self.lframe_settings_a, text='Heat.Set [A]')
        self.label_meas_set_a = Tkinter.Label(self.lframe_settings_a, text='Meas. Set [A]')
        self.label_set_time_a = Tkinter.Label(self.lframe_settings_a, text='Time Limit [s]')
        self.label_set_delay_a = Tkinter.Label(self.lframe_settings_a, text='Measurement Delay [s]')
        self.label_set_repeat_a = Tkinter.Label(self.lframe_settings_a, text='Repeat')

        #B
        self.label_power_supply_b = Tkinter.Label(self.lframe_instrumet_b, text="Power Supply 2200: ")
        self.label_multimeter_b = Tkinter.Label(self.lframe_instrumet_b, text="Multimeter 2700: ")
        self.label_voltage_range_b = Tkinter.Label(self.lframe_settings_b, text='Voltage Range [V]')
        self.label_over_voltage_b = Tkinter.Label(self.lframe_settings_b, text='Over Voltage Protection [V]')
        self.label_voltage_set_b = Tkinter.Label(self.lframe_settings_b, text='Set Voltage [V]')
        self.label_heat_set_b = Tkinter.Label(self.lframe_settings_b, text='Heat.Set [A]')
        self.label_meas_set_b = Tkinter.Label(self.lframe_settings_b, text='Meas. Set [A]')
        self.label_set_time_b = Tkinter.Label(self.lframe_settings_b, text='Time Limit [s]')
        self.label_set_delay_b = Tkinter.Label(self.lframe_settings_b, text='Measurement Delay [s]')
        self.label_set_repeat_b = Tkinter.Label(self.lframe_settings_b, text='Repeat')

        #C
        self.label_power_supply_c = Tkinter.Label(self.lframe_instrumet_c, text="Power Supply 2200: ")
        self.label_multimeter_c = Tkinter.Label(self.lframe_instrumet_c, text="Multimeter 2700: ")
        self.label_voltage_range_c = Tkinter.Label(self.lframe_settings_c, text='Voltage Range [V]')
        self.label_over_voltage_c = Tkinter.Label(self.lframe_settings_c, text='Over Voltage Protection [V]')
        self.label_voltage_set_c = Tkinter.Label(self.lframe_settings_c, text='Set Voltage [V]')
        self.label_heat_set_c = Tkinter.Label(self.lframe_settings_c, text='Heat.Set [A]')
        self.label_meas_set_c = Tkinter.Label(self.lframe_settings_c, text='Meas. Set [A]')
        self.label_set_time_c = Tkinter.Label(self.lframe_settings_c, text='Time Limit [s]')
        self.label_set_delay_c = Tkinter.Label(self.lframe_settings_c, text='Measurement Delay [s]')
        self.label_set_repeat_c = Tkinter.Label(self.lframe_settings_c, text='Repeat')

    # Checkbutton
        #A
        self.temp_sensor_a_var = Tkinter.IntVar()
        self.check_temp_sensor_a = Checkbutton(self.lframe_instrumet_a, text="Temperatursensor - #A", variable=self.temp_sensor_a_var,
                                               onvalue=1, offvalue=0)
        self.instrument_var_a = Tkinter.IntVar()
        self.check_instrument_a = Checkbutton(self.lframe_settings_a, text="Instrument - #A", variable=self.instrument_var_a,
                                               onvalue=1, offvalue=0)
        #B
        self.temp_sensor_b_var = Tkinter.IntVar()
        self.check_temp_sensor_b = Checkbutton(self.lframe_instrumet_b, text="Temperatursensor - #B", variable=self.temp_sensor_b_var,
                                               onvalue=1, offvalue=0)
        self.instrument_var_b = Tkinter.IntVar()
        self.check_instrument_b = Checkbutton(self.lframe_settings_b, text="Instrument - #B", variable=self.instrument_var_b,
                                               onvalue=1, offvalue=0)
        #C
        self.temp_sensor_c_var = Tkinter.IntVar()
        self.check_temp_sensor_c = Checkbutton(self.lframe_instrumet_c, text="Temperatursensor - #C", variable=self.temp_sensor_c_var,
                                               onvalue=1, offvalue=0)
        self.instrument_var_c = Tkinter.IntVar()
        self.check_instrument_c = Checkbutton(self.lframe_settings_c, text="Instrument - #C", variable=self.instrument_var_c,
                                               onvalue=1, offvalue=0)
    # Entry/Spinbox
        #A
        self.voltage_range_a_var = Tkinter.IntVar()
        self.spin_voltage_range_a = Tkinter.Spinbox(self.lframe_settings_a, textvariable=self.voltage_range_a_var, width=5,
                                                    from_=0, to=30, justify='right')
        self.over_voltage_a_var = Tkinter.IntVar()
        self.spin_over_voltage_a = Tkinter.Spinbox(self.lframe_settings_a, textvariable=self.over_voltage_a_var, width=5,
                                                   from_=0, to=30, justify='right')
        self.heat_set_a_var = Tkinter.IntVar()
        self.entry_heat_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.heat_set_a_var, width=7, justify='right')

        self.meas_set_a_var = Tkinter.IntVar()
        self.entry_meas_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.meas_set_a_var, width=7, justify='right')

        self.voltage_set_a_var = Tkinter.IntVar()
        self.entry_voltage_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.voltage_set_a_var, width=7, justify='right')

        self.time_set_a_var = Tkinter.IntVar()
        self.entry_time_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.time_set_a_var, width=7, justify='right')

        self.delay_set_a_var = Tkinter.IntVar()
        self.entry_delay_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.delay_set_a_var, width=7, justify='right')

        self.repeat_set_a_var = Tkinter.IntVar()
        self.entry_repeat_set_a = Tkinter.Entry(self.lframe_settings_a, textvariable=self.repeat_set_a_var, width=7, justify='right')

        #B
        self.voltage_range_b_var = Tkinter.IntVar()
        self.spin_voltage_range_b = Tkinter.Spinbox(self.lframe_settings_b, textvariable=self.voltage_range_b_var, width=5,
                                                    from_=0, to=30, justify='right')
        self.over_voltage_b_var = Tkinter.IntVar()
        self.spin_over_voltage_b = Tkinter.Spinbox(self.lframe_settings_b, textvariable=self.over_voltage_b_var, width=5,
                                                   from_=0, to=30, justify='right')
        self.heat_set_b_var = Tkinter.IntVar()
        self.entry_heat_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.heat_set_b_var, width=7, justify='right')

        self.meas_set_b_var = Tkinter.IntVar()
        self.entry_meas_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.meas_set_b_var, width=7, justify='right')

        self.voltage_set_b_var = Tkinter.IntVar()
        self.entry_voltage_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.voltage_set_b_var, width=7, justify='right')

        self.time_set_b_var = Tkinter.IntVar()
        self.entry_time_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.time_set_b_var, width=7, justify='right')

        self.delay_set_b_var = Tkinter.IntVar()
        self.entry_delay_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.delay_set_b_var, width=7, justify='right')

        self.repeat_set_b_var = Tkinter.IntVar()
        self.entry_repeat_set_b = Tkinter.Entry(self.lframe_settings_b, textvariable=self.repeat_set_b_var, width=7, justify='right')

        #C
        self.voltage_range_c_var = Tkinter.IntVar()
        self.spin_voltage_range_c = Tkinter.Spinbox(self.lframe_settings_c, textvariable=self.voltage_range_c_var, width=5,
                                                    from_=0, to=30, justify='right')
        self.over_voltage_c_var = Tkinter.IntVar()
        self.spin_over_voltage_c = Tkinter.Spinbox(self.lframe_settings_c, textvariable=self.over_voltage_c_var, width=5,
                                                   from_=0, to=30, justify='right')
        self.heat_set_c_var = Tkinter.IntVar()
        self.entry_heat_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.heat_set_c_var, width=7, justify='right')

        self.meas_set_c_var = Tkinter.IntVar()
        self.entry_meas_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.meas_set_c_var, width=7, justify='right')

        self.voltage_set_c_var = Tkinter.IntVar()
        self.entry_voltage_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.voltage_set_c_var, width=7, justify='right')

        self.time_set_c_var = Tkinter.IntVar()
        self.entry_time_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.time_set_c_var, width=7, justify='right')

        self.delay_set_c_var = Tkinter.IntVar()
        self.entry_delay_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.delay_set_c_var, width=7, justify='right')

        self.repeat_set_c_var = Tkinter.IntVar()
        self.entry_repeat_set_c = Tkinter.Entry(self.lframe_settings_c, textvariable=self.repeat_set_c_var, width=7, justify='right')

    # Button
        self.button_run = Tkinter.Button(self.frame_settings, text="Run", command=lambda: self.on_run(), width=25)
        self.button_stop = Tkinter.Button(self.frame_settings, text="Stop", command=lambda: self.on_stop(), width=25)
        self.button_quit = Tkinter.Button(self.frame_settings, text="Quit", command=lambda: self.on_quit(), width=25)

    # Grid
        parent.resizable(False, False)
        parent.grid_columnconfigure(0, weight=0)

        # Instrument #A
        self.frame_instruments.grid(row=0, column=0)

        self.lframe_instrumet_a.grid(row=0, column=0)
        self.label_power_supply_a.grid(row=0, column=0, sticky='W')
        self.label_multimeter_a.grid(row=1, column=0, sticky='W')
        self.combo_power_supply_a.grid(row=0, column=1)
        self.combo_multimeter_a.grid(row=1, column=1)
        self.check_temp_sensor_a.grid(row=2, column=1)

        self.lframe_settings_a.grid(row=0, column=2)
        self.label_voltage_range_a.grid(row=0, column=2, sticky='W')
        self.spin_voltage_range_a.grid(row=0, column=3)
        self.label_over_voltage_a.grid(row=1, column=2, sticky='W')
        self.label_heat_set_a.grid(row=2, column=2, sticky='W')
        self.spin_over_voltage_a.grid(row=1, column=3)
        self.entry_heat_set_a.grid(row=2, column=3)
        self.label_voltage_set_a.grid(row=0, column=4, sticky='W')
        self.label_meas_set_a.grid(row=1, column=4, sticky='W')
        self.label_set_time_a.grid(row=2, column=4, sticky='W')
        self.entry_voltage_set_a.grid(row=0, column=5)
        self.entry_meas_set_a.grid(row=1, column=5)
        self.entry_time_set_a.grid(row=2, column=5)
        self.label_set_delay_a.grid(row=0, column=6, sticky='W')
        self.label_set_repeat_a.grid(row=1, column=6, sticky='W')
        self.entry_delay_set_a.grid(row=0, column=7)
        self.entry_repeat_set_a.grid(row=1, column=7)
        self.check_instrument_a.grid(row=2, column=6, sticky='W')

        # Instrument #B
        self.lframe_instrumet_b.grid(row=3)
        self.label_power_supply_b.grid(row=3, column=0)
        self.label_multimeter_b.grid(row=4, column=0)
        self.combo_power_supply_b.grid(row=3, column=1)
        self.combo_multimeter_b.grid(row=4, column=1)
        self.check_temp_sensor_b.grid(row=5, column=1)

        self.lframe_settings_b.grid(row=3, column=2)
        self.label_voltage_range_b.grid(row=3, column=2, sticky='W')
        self.spin_voltage_range_b.grid(row=3, column=3)
        self.label_over_voltage_b.grid(row=4, column=2, sticky='W')
        self.label_heat_set_b.grid(row=5, column=2, sticky='W')
        self.spin_over_voltage_b.grid(row=4, column=3)
        self.entry_heat_set_b.grid(row=5, column=3)
        self.label_voltage_set_b.grid(row=3, column=4, sticky='W')
        self.label_meas_set_b.grid(row=4, column=4, sticky='W')
        self.label_set_time_b.grid(row=5, column=4, sticky='W')
        self.entry_voltage_set_b.grid(row=3, column=5)
        self.entry_meas_set_b.grid(row=4, column=5)
        self.entry_time_set_b.grid(row=5, column=5)
        self.label_set_delay_b.grid(row=3, column=6, sticky='W')
        self.label_set_repeat_b.grid(row=4, column=6, sticky='W')
        self.entry_delay_set_b.grid(row=3, column=7)
        self.entry_repeat_set_b.grid(row=4, column=7)
        self.check_instrument_b.grid(row=5, column=6, sticky='W')

         # Instrument #C
        self.lframe_instrumet_c.grid(row=6)
        self.label_power_supply_c.grid(row=6, column=0)
        self.label_multimeter_c.grid(row=7, column=0)
        self.combo_power_supply_c.grid(row=6, column=1)
        self.combo_multimeter_c.grid(row=7, column=1)
        self.check_temp_sensor_c.grid(row=8, column=1)

        self.lframe_settings_c.grid(row=6, column=2)
        self.label_voltage_range_c.grid(row=6, column=2, sticky='W')
        self.spin_voltage_range_c.grid(row=6, column=3)
        self.label_over_voltage_c.grid(row=7, column=2, sticky='W')
        self.label_heat_set_c.grid(row=8, column=2, sticky='W')
        self.spin_over_voltage_c.grid(row=7, column=3)
        self.entry_heat_set_c.grid(row=8, column=3)
        self.label_voltage_set_c.grid(row=6, column=4, sticky='W')
        self.label_meas_set_c.grid(row=7, column=4, sticky='W')
        self.label_set_time_c.grid(row=8, column=4, sticky='W')
        self.entry_voltage_set_c.grid(row=6, column=5)
        self.entry_meas_set_c.grid(row=7, column=5)
        self.entry_time_set_c.grid(row=8, column=5)
        self.label_set_delay_c.grid(row=6, column=6, sticky='W')
        self.label_set_repeat_c.grid(row=7, column=6, sticky='W')
        self.entry_delay_set_c.grid(row=6, column=7)
        self.entry_repeat_set_c.grid(row=7, column=7)
        self.check_instrument_c.grid(row=8, column=6, sticky='W')

        # Button
        self.frame_settings.grid(row=8)
        self.button_run.grid(row=8, column=0)
        self.button_stop.grid(row=8,column=1)
        self.button_quit.grid(row=8, column=2)


    # Function
    def about(self):
        tkMessageBox.showinfo("About", "About" %chr(64))

    def on_quit(self):
        self.parent.quit()
        self.parent.destroy()
        self.fout.close()

    def save_file(self):
        self.file_opt = self.options = {}
        self.options['filetypes'] = [('Text Files', '.txt')]
        self.dataname = asksaveasfilename(**self.file_opt)
        self.datamode = 'a'

        try:
            self.fout = open(self.dataname, self.datamode)
        except Exception, e:
            strError = "Output file open error: "+ str(e)
            tkMessageBox.showerror("Error", strError)
    def on_stop(self):
        self.button_quit.configure(state='active')

    def on_run(self):
        self.button_quit.configure(state='disable')
        create_header = Header(gui.fout, self.selected_instruments_query(),self.dataname, self.voltage_range_a_var.get(),
                               self.voltage_set_a_var.get(), self.delay_set_a_var.get(), self.over_voltage_a_var.get(),
                               self.meas_set_a_var.get(), self.repeat_set_a_var.get(), self.heat_set_a_var.get(),
                               self.temp_sensor_a_var.get(), self.voltage_range_b_var.get(),
                               self.voltage_set_b_var.get(), self.delay_set_b_var.get(), self.over_voltage_b_var.get(),
                               self.meas_set_b_var.get(), self.repeat_set_b_var.get(), self.heat_set_b_var.get(),
                               self.temp_sensor_b_var.get(),self.voltage_range_c_var.get(),
                               self.voltage_set_c_var.get(), self.delay_set_c_var.get(), self.over_voltage_c_var.get(),
                               self.meas_set_c_var.get(), self.repeat_set_c_var.get(), self.heat_set_c_var.get(),
                               self.temp_sensor_c_var.get())

    def selected_instruments_query(self):
        selected_power_query = [self.instrument_var_a.get(), self.instrument_var_b.get(), self.instrument_var_c.get()]
        selected_multimeter_query = [self.temp_sensor_a_var.get(), self.temp_sensor_b_var.get(), self.temp_sensor_c_var.get()]
        selected_instruments_query = [selected_power_query,selected_multimeter_query]
        return selected_instruments_query


class Header:
    WRITE = 0
    def __init__(self,fout,selected_instruments,dataname,voltage_range_a_var,voltage_set_a_var, delay_set_a_var,
                 over_voltage_a_var,meas_set_a_var, repeat_set_a_var, heat_set_a_var, time_set_a_var, voltage_range_b_var,
                 voltage_set_b_var, delay_set_b_var,over_voltage_b_var,meas_set_b_var, repeat_set_b_var,
                 heat_set_b_var, time_set_b_var, voltage_range_c_var,voltage_set_c_var, delay_set_c_var,
                 over_voltage_c_var,meas_set_c_var, repeat_set_c_var, heat_set_c_var, time_set_c_var):

        self.fout = fout
        self.selected_instruments = selected_instruments
        self.dataname = dataname
        self.voltage_range_a_var = voltage_range_a_var
        self.voltage_set_a_var = voltage_set_a_var
        self.delay_set_a_var = delay_set_a_var
        self.over_voltage_a_var = over_voltage_a_var
        self.meas_set_a_var = meas_set_a_var
        self.repeat_set_a_var = repeat_set_a_var
        self.heat_set_a_var = heat_set_a_var
        self.time_set_a_var = time_set_a_var
        self.voltage_range_b_var = voltage_range_b_var
        self.voltage_set_b_var = voltage_set_b_var
        self.delay_set_b_var = delay_set_b_var
        self.over_voltage_b_var = over_voltage_b_var
        self.meas_set_b_var = meas_set_b_var
        self.repeat_set_b_var = repeat_set_b_var
        self.heat_set_b_var = heat_set_b_var
        self.time_set_b_var = time_set_b_var
        self.voltage_range_c_var = voltage_range_c_var
        self.voltage_set_c_var = voltage_set_c_var
        self.delay_set_c_var = delay_set_c_var
        self.over_voltage_c_var = over_voltage_c_var
        self.meas_set_c_var = meas_set_c_var
        self.repeat_set_c_var = repeat_set_c_var
        self.heat_set_c_var = heat_set_c_var
        self.time_set_c_var = time_set_c_var
        print self.selected_instruments
        # Header involve data only once
        if Header.WRITE == 0:
            self.header_file()
            Header.WRITE = 1

    def header_file(self):
        t = datetime.datetime.now()
        curr_datetime = t.timetuple()
        yr = str(curr_datetime[0])
        curr_date = "%02d."%int(yr[2:]) + "%02d."%curr_datetime[1] + "%02d."%curr_datetime[2]
        curr_time = "%02d:"%curr_datetime[3] + "%02d:"%curr_datetime[4] + "%02d"%curr_datetime[5]
        time_data = curr_date + " " + curr_time
        separate_line = "*"*120

        str_out_time = "Filename: \t%s \nTime/Date: \t%s \n\nInstrument - #A\n\n" % (self.dataname, time_data)
        self.fout.write(str_out_time)
        str_out_a = "Voltage Range: \t%d\tSet Voltage: \t%d\tMeasurement Delay: \t%d\n" \
                    "OVP: \t\t%d\tMeas.Set: \t%d\tRepeat: \t\t%d\n" \
                    "Heat.Set: \t%d\tTime Limit: \t%d\n\n\n" % (self.voltage_range_a_var,
                    self.voltage_set_a_var, self.delay_set_a_var, self.over_voltage_a_var,
                    self.meas_set_a_var, self.repeat_set_a_var, self.heat_set_a_var,
                    self.time_set_a_var)

        str_out_b = "Instrument - #B\n\nVoltage Range: \t%d\tSet Voltage: \t%d\tMeasurement Delay: \t%d\n" \
                    "OVP: \t\t%d\tMeas.Set: \t%d\tRepeat: \t\t%d\n" \
                    "Heat.Set: \t%d\tTime Limit: \t%d\n\n\n"  % (self.voltage_range_b_var,
                    self.voltage_set_b_var, self.delay_set_b_var, self.over_voltage_b_var,
                    self.meas_set_b_var, self.repeat_set_b_var, self.heat_set_b_var,
                    self.time_set_b_var)
        str_out_c = "Instrument - #C\n\nVoltage Range: \t%d\tSet Voltage: \t%d\tMeasurement Delay: \t%d\n" \
                    "OVP: \t\t%d\tMeas.Set: \t%d\tRepeat: \t\t%d\n" \
                    "Heat.Set: \t%d\tTime Limit: \t%d\n\n\n%s\n" % (self.voltage_range_c_var,
                    self.voltage_set_c_var, self.delay_set_c_var, self.over_voltage_c_var,
                    self.meas_set_c_var, self.repeat_set_c_var, self.heat_set_c_var,
                    self.time_set_c_var, separate_line)

        # Print header file depending of the instruments
        for condition, string in zip(self.selected_instruments[0], [str_out_a, str_out_b, str_out_c]):
            if condition:
                self.fout.write(string)


if __name__ == '__main__':
    root = Tkinter.Tk()
    gui = Interface(root)
    root.mainloop()

Answer 1

一个可怕的简化示例，说明如何使用（和切换）三个不同的循环，并行运行（在本例中）打印三个不同的单词。

使用Tkinters的after()方法，这些循环可以在主循环中运行：

from Tkinter import * class MultiLoop: def __init__(self): self.master = Tk() self.run1 = False self.run2 = False self.run3 = False button1 = Button(text="Toggle Monkey", command = self.togglemonkey).pack() button2 = Button(text="Toggle eats", command = self.toggleeats).pack() button3 = Button(text="Toggle banana", command = self.togglebanana).pack() # first call: self.master.after(0, self.loop1) self.master.after(0, self.loop2) self.master.after(0, self.loop3) self.master.mainloop() # The three loops def loop1(self): if self.run1 == True: print("Monkey") else: pass # schedule next run self.master.after(100, self.loop1) def loop2(self): if self.run2 == True: print("eats") else: pass # schedule next run self.master.after(1000, self.loop2) def loop3(self): if self.run3 == True: print("banana") else: pass # schedule next run self.master.after(2000, self.loop3) # The toggle functions def togglemonkey(self): self.run1 = True if self.run1 == False else False def toggleeats(self): self.run2 = True if self.run2 == False else False def togglebanana(self): self.run3 = True if self.run3 == False else False MultiLoop()

同时运行更多循环？

1 个答案: