论坛 › Python交流 › 在函数中怎么访问entry中的内容

lengyue869 发表于 2022-11-23 10:40:03

在函数中怎么访问entry中的内容

我想将以下代码mian函数中的那一坨代码放到win_tk()函数中去该怎么改啊,
如果直接放进去的话run_com()函数中etyText.get()就没办法获取到entry中的内容

import tkinter as tk
from tkinter.filedialog import askopenfilename
from tkinter.messagebox import *


def win_tk():
    pass


def select_com():
    etyText.set(askopenfilename())


def run_com():
    filePath = etyText.get()
    showinfo('Tips', filePath)


if __name__ == '__main__':
    root = tk.Tk()
    root.attributes('-alpha', 0.9)
    root.geometry('700x200+400+200')
    etyText = tk.StringVar()
    lb = tk.Label(root, font=('Arial', 10), text=' File Path :')
    ety = tk.Entry(root, font=('Arial', 10), textvariable=etyText, width=80)
    btnSelect = tk.Button(root, font=('Arial', 10), text='Select', command=select_com)
    btnRun = tk.Button(root, font=('Arial', 10), fg='white', bg='gray', text='   Run   ', command=run_com)

    lb.grid(row=0, column=0)
    ety.grid(row=0, column=1)
    btnSelect.grid(row=0, column=2)
    btnRun.grid(row=1, column=1)
    tk.mainloop()






import tkinter as tk
from tkinter.filedialog import askopenfilename
from tkinter.messagebox import *


def win_tk():
    root = tk.Tk()
    root.attributes('-alpha', 0.9)
    root.geometry('700x200+400+200')
    etyText = tk.StringVar()
    lb = tk.Label(root, font=('Arial', 10), text=' File Path :')
    ety = tk.Entry(root, font=('Arial', 10), textvariable=etyText, width=80)
    btnSelect = tk.Button(root, font=('Arial', 10), text='Select', command=select_com)
    btnRun = tk.Button(root, font=('Arial', 10), fg='white', bg='gray', text='   Run   ', command=run_com)

    lb.grid(row=0, column=0)
    ety.grid(row=0, column=1)
    btnSelect.grid(row=0, column=2)
    btnRun.grid(row=1, column=1)
    tk.mainloop()


def select_com():
    etyText.set(askopenfilename())


def run_com():
    filePath = etyText.get()
    showinfo('Tips', filePath)


if __name__ == '__main__':
    win_tk()

ZhKQYu 发表于 2022-11-23 12:50:32

本帖最后由 ZhKQYu 于 2022-11-23 12:53 编辑

import tkinter as tk
from tkinter.filedialog import askopenfilename
from tkinter.messagebox import *
from functools import partial


def win_tk():
    root = tk.Tk()
    root.attributes('-alpha', 0.9)
    root.geometry('700x200+400+200')
    etyText = tk.StringVar()
    lb = tk.Label(root, font=('Arial', 10), text=' File Path :')
    ety = tk.Entry(root, font=('Arial', 10), textvariable=etyText, width=80)
    # 两种方法都行
    # btnSelect = tk.Button(root, font=('Arial', 10), text='Select', command=partial(select_com, etyText))
    btnSelect = tk.Button(root, font=('Arial', 10), text='Select', command=lambda: select_com(etyText))
    btnRun = tk.Button(root, font=('Arial', 10), fg='white', bg='gray', text='   Run   ', command=partial(run_com, etyText))
    # btnRun = tk.Button(root, font=('Arial', 10), fg='white', bg='gray', text='   Run   ', command=lambda: run_com(etyText))

    lb.grid(row=0, column=0)
    ety.grid(row=0, column=1)
    btnSelect.grid(row=0, column=2)
    btnRun.grid(row=1, column=1)
    tk.mainloop()


def select_com(etyText):
    etyText.set(askopenfilename())


def run_com(etyText):
    filePath = etyText.get()
    showinfo('Tips', filePath)


if __name__ == '__main__':
    win_tk()

阿奇_o 发表于 2022-11-23 12:52:39

较小的改动：改造函数，用函数参数传递所需要处理的对象。若有必要使用全局变量也行。 根据需要返回适当的对象。

较大的改动：用OOP面向对象的方式，改写和实现。

jackz007 发表于 2022-11-23 13:21:21

import tkinter as tk
from tkinter.filedialog import askopenfilename
from tkinter.messagebox import *

def select_com():
    etyText . set(askopenfilename())

def run_com():
    filePath = etyText.get()
    showinfo('Tips', filePath)

def win_tk():
    global etyText                        # 添加此句，把 etyText 置为全局变量
    root = tk.Tk()
    root.attributes('-alpha', 0.9)
    root.geometry('700x200+400+200')
    etyText = tk.StringVar()
    lb = tk.Label(root, font=('Arial', 10), text=' File Path :')
    ety = tk.Entry(root, font=('Arial', 10), textvariable=etyText, width=80)
    btnSelect = tk.Button(root, font=('Arial', 10), text='Select', command=select_com)
    btnRun = tk.Button(root, font=('Arial', 10), fg='white', bg='gray', text='   Run   ', command=run_com)

    lb.grid(row=0, column=0)
    ety.grid(row=0, column=1)
    btnSelect.grid(row=0, column=2)
    btnRun.grid(row=1, column=1)
    tk.mainloop()

if __name__ == '__main__':
    win_tk()

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