我有Python Tkinter程序,在其中我制作了三行,每行10个标签,并在它们下面放置了一个开始按钮。我已使用循环在“标签”中显示文本。
仅第一行标签显示标题。
在Label的第二行上,我设置了以下条件:如果循环值模数等于零(a%2==0)
,它将显示Labels文本为ON,否则显示OFF,并且此条件在Label的第三行中与下面所示以及代码中相反。
最后,在启动按钮上,我调用了一个函数,该函数可验证以下过程:如果循环变量值模数2等于1,则在标签的第二行上将标签文本显示为OFF,否则将标签文本显示为ON。此过程与“标签”的第三行相反。并且这个过程一直持续到我仍然按下按钮为止。但是在这里,我希望当我按下开始按钮时,它会自动保持更改文本的状态。代码如下:
from tkinter import *
import tkinter as tk
win = Tk()
win.title("Label")
win.geometry("800x600+50+50")
win.config(bg='white')
label1=Label(win, text="Label Status Changer", font=("Calibri",24,"bold"), bg='white', borderwidth=1, relief="solid", padx=20, pady=20) #"flat", "raised", "sunken", "ridge", "solid", and "groove"
label1.pack(pady=(15,60))
list1=[]
list2=[]
lblframe = tk.Frame(win)
for a1 in range(10):
pre1=Label(lblframe, text=("LBL",(a1+1)), font=("Calibri",12, "bold"), bg="white", borderwidth=1, relief="solid", padx=5, pady=2)
pre1.grid(row=0, column=a1)
for l1 in range(10):
if l1%2 ==0:
list1.append(1)
else:
list1.append(0)
for l2 in range(10):
if l2%2 ==1:
list2.append(1)
else:
list2.append(0)
def mylabels():
for a2 in range(10):
if ( int(list1[a2])== 0 ):
pre2=Label(lblframe, text="OFF", font=("Calibri",12,"bold"), bg="white", fg="Green", borderwidth=1, relief="solid", padx=11, pady=1)
pre2.grid(row=1, column=a2, sticky="nw")
#list1.append(pre2.cget("text"))
else:
pre2=Label(lblframe, text="ON", font=("Calibri",12,"bold"), bg="white", fg="Red", borderwidth=1, relief="solid", padx=11, pady=1)
pre2.grid(row=1, column=a2, sticky="nw")
#list1.append(pre2.cget("text"))
for a3 in range(10):
if (int(list2[a3])== 0):
pre3=Label(lblframe, text="OFF", font=("Calibri",12,"bold"), bg="white", fg="Green", borderwidth=1, relief="solid", padx=11, pady=1)
pre3.grid(row=2, column=a3, sticky="nw")
#list2.append(pre3.cget("text"))
else:
pre3=Label(lblframe, text="ON", font=("Calibri",12,"bold"), bg="white", fg="Red", borderwidth=1, relief="solid", padx=11, pady=1)
pre3.grid(row=2, column=a3, sticky="nw")
#list2.append(pre3.cget("text"))
lblframe.pack()
mylabels()
def statuschanger():
if(int(list1[1])%2==0):
list1.clear()
list2.clear()
for l3 in range(10):
if l3%2 ==1:
list1.append(1)
else:
list1.append(0)
for l4 in range(10):
if l4%2 ==0:
list2.append(1)
else:
list2.append(0)
mylabels()
elif(int(list1[1])%2==1):
list1.clear()
list2.clear()
for l3 in range(10):
if l3%2 ==0:
list1.append(1)
else:
list1.append(0)
for l4 in range(10):
if l4%2 ==1:
list2.append(1)
else:
list2.append(0)
mylabels()
#Button1
button1=Button(win,text="Start",width=10,height=2, font=("Calibri",16,"bold"), bg="black",fg="white", command=statuschanger)
button1.pack(pady=(30,0))
win.mainloop()
正在运行的程序输出
按下开始按钮时的输出
使用win.after(100, statuschanger)
中的statuschanger()
,它将重复功能。
def statuschanger():
if(int(list1[1])%2==0):
list1.clear()
list2.clear()
for l3 in range(10):
if l3%2 ==1:
list1.append(1)
else:
list1.append(0)
for l4 in range(10):
if l4%2 ==0:
list2.append(1)
else:
list2.append(0)
mylabels()
elif(int(list1[1])%2==1):
list1.clear()
list2.clear()
for l3 in range(10):
if l3%2 ==0:
list1.append(1)
else:
list1.append(0)
for l4 in range(10):
if l4%2 ==1:
list2.append(1)
else:
list2.append(0)
mylabels()
win.after(100, statuschanger) # run again after 100ms