tkinter学习笔记_04

8、勾选项 checkbutton

import tkinter as tk
root = tk.Tk()
root.title("xxx")
root.geometry('200x100')

# 提示框
l = tk.Label(root, bg='yellow', width=20, text='empty')  # textvariable 文本变量值
l.pack()

# 勾选框
def print_selection():  # Checkbutton不能传值的
    if (var1.get() == 1) & (var2.get() == 0):
        l.config(text='I love only Python')
    elif (var1.get() == 0) & (var2.get() == 1):
        l.config(text='I love only C++')
    elif (var1.get() == 0) & (var2.get() == 0):
        l.config(text='I love only either')
    else:
        l.config(text='I love both')

var1 = tk.IntVar()  # 整数的值
var2 = tk.IntVar()  # 整数的值
cl = tk.Checkbutton(root, text='python', variable=var1, onvalue=1, offvalue=0,
                    command=print_selection)  # 选定它onvalue 就是1， 不选择就是offvalue就是0
cl2 = tk.Checkbutton(root, text='C++', variable=var2, onvalue=1, offvalue=0,
                    command=print_selection)
cl.pack()
cl2.pack()

root.mainloop()

9、画布 canvas

import tkinter as tk
root = tk.Tk()
root.title("xxx")
root.geometry('800x600')

# 画布  bg背景色
canvas = tk.Canvas(root, bg='blue', height=300, width=800)  # height高 width宽
# 右上角添加图片
aa = "C:/Users/bj0204/Desktop/TIM图片20180507183242.png"
image_file = tk.PhotoImage(file=aa)
image = canvas.create_image(10,10, anchor='nw', image=image_file)  # anchor 方向
# 画斜线
x0,y0,x1,y1 = 50,50,80,80
line = canvas.create_line(x0,y0,x1,y1)
# 圆形
oval = canvas.create_oval(x0,y0,x1,y1, fill='red')
# 扇形
arc = canvas.create_arc(x0+30,y0+30,x1+30,y1+30, start=0, extent=180)
# 长方形
rect = canvas.create_rectangle(100,30,100+20,30+20)

canvas.pack()
def moveit():
    canvas.move(rect, 0 , 2)  # 长方形，从x不动，y方向往下移动
b = tk.Button(root, text='move', command=moveit).pack()

root.mainloop()