【button按钮控件】
语法
b = tk.Button(window, text='hit me', command=hit_me)
import tkinter as tk
from tkmacosx import Button # 解决在mac下无法修改button背景色
window = tk.Tk()
window.title('My window')
window.geometry('500x300')
var = tk.StringVar()
l = tk.Label(window, textvariable=var, bg='green', fg='white', font={'Arial', 12}, width=30, height=2)
l.pack()
on_hit = False
def hit_me():
global on_hit
if on_hit == False:
on_hit = True
var.set('you hit me')
else:
on_hit = False
var.set('')
b = Button(window, text='hit me', bg='blue', fg='white', font=('Arial', 12), width=50, height=20, command=hit_me)
b.pack()
window.mainloop()
注意：macOS下python Tkinter中Button无法更改背景颜色，解决方法如下：
1.安装模块：pip3 install tkmacosx
2.导入模块：from tkmacosx import Button
3.按钮：b = Button(window, text='hit me', bg='blue', fg='white', font=('Arial', 12), width=50, height=20, command=hit_me)
【Entry单行文本输入框】
用处：需要用户输入信息时使用
import tkinter as tk
window = tk.Tk()
window.title('My window')
window.geometry('500x300')
e1 = tk.Entry(window, show='*', font=('Arial', 14)) # 密文
e2 = tk.Entry(window, show=None, font=('Arial', 14)) # 明文
e1.pack()
e2.pack()
window.mainloop()
【Text多行文本区域】
import tkinter as tk
from tkmacosx import Button, widget
window = tk.Tk()
window.title('My window')
window.geometry('500x300')
e = tk.Entry(window, show=None)
e.pack()
def insert_point(): # 在鼠标焦点处插入输入内容
var = e.get()
t.insert('insert', var)
def insert_end(): # 在文本内容最后接着插入输入内容
var = e.get()
t.insert('end', var)
b1 = Button(window, text='insert point', width=100, height=20, command=insert_point)
b1.pack()
b2 = Button(window, text='insert end', width=100, height=20, command=insert_end)
b2.pack()
t = tk.Text(window, height=30) # 多行
t.pack()
window.mainloop()
【listbox 列表】
import tkinter as tk
from tkmacosx import Button, widget
window = tk.Tk()
window.title('My window')
window.geometry('500x300')
var1 = tk.StringVar() # 创建变量，鼠标点击具体选项的内容
l = tk.Label(window, bg='green', fg='yellow', font={'Arial', 12}, width=10, textvariable=var1)
l.pack()
# 创建一个函数用于按钮的点击事件
def print_selection():
value = lb.get(lb.curselection()) # 获取当前选中的文本
var1.set(value) # 为label设置值
# 按钮必须放在函数下面,点击按钮调用print_selection函数
b1 = Button(window, text='print selection', width=100, height=20, command=print_selection)
b1.pack()
var2 = tk.StringVar()
var2.set((1,2,3,4))
lb = tk.Listbox(window, listvariable=var2)
# 创建一个列表并将值循环填加到Listbox中
list_items = [11,22,33,44]
for item in list_items:
lb.insert('end', item) # 从最后一个位置开始
lb.insert(1, 'first') # 在第一个位置处增加'first'字符串
lb.insert(2, 'second')
lb.delete(2)
lb.pack()
window.mainloop()
【Radiobutton 单选按钮】macOS下字体颜色有问题，还未找到理想的解决办法
import tkinter as tk
from tkmacosx import Button
window = tk.Tk()
window.title('My window')
window.geometry('500x300')
var = tk.StringVar()
l = tk.Label(window, bg='green', width=20, text='empty')
l.pack()
def print_selection():
l.config(text='you have selected ' + var.get())
r1 = tk.Radiobutton(window, text='Option A', variable=var, value=1, command=print_selection)
r1.pack()
r2 = tk.Radiobutton(window, text='Option B', variable=var, value=2, command=print_selection)
r2.pack()
r3 = tk.Radiobutton(window, text='Option C', variable=var, value=3, command=print_selection)
r3.pack()
window.mainloop()
网友评论