Question

我有以下问题，我有一个7 x 7网格填充butoons，以下问题是：我想稍后在按钮上替换文本，但是在行和列的帮助下，这怎么可能？

import tkinter as tk

def click(row, col):
    print(row, col)
    label.configure(text="you clicked row %s column %s" % (row, col))

test_text = "TEST"

root = tk.Tk()
for row in range(1,8):
    for col in range(1,8):
        button = tk.Button(root, text=test_text, 
                           command=lambda row=row, col=col: click(row, col))
        button.grid(row=row, column=col, sticky="nsew")
label = tk.Label(root, text="")
label.grid(row=8, column=1, columnspan=8, sticky="new")

root.grid_rowconfigure(10, weight=1)
root.grid_columnconfigure(10, weight=1)


root.mainloop()

Answer 1

您需要保留对按钮的引用以更改其文本。这是一个例子。

import tkinter as tk

def click(row, col):
    print(row, col)
    label.configure(text="you clicked row %s column %s" % (row, col))
    buttons[row-1][col-1].config(text='Foo')

test_text = "TEST"

root = tk.Tk()

buttons = []
for row in range(1,8):
    button_row = []
    for col in range(1,8):
        button = tk.Button(root, text=test_text, 
                           command=lambda row=row, col=col: click(row, col))
        button.grid(row=row, column=col, sticky="nsew")
        button_row.append(button)
    buttons.append(button_row)

label = tk.Label(root, text="")
label.grid(row=8, column=1, columnspan=8, sticky="new")

root.grid_rowconfigure(10, weight=1)
root.grid_columnconfigure(10, weight=1)


root.mainloop()

我必须在处理程序中使用row-1和col-1来更正索引。

Python Tkinter使用行和列更改Button Text

1 个答案: