我的tkinter学习笔记5

from tkinter import *
root = Tk()
root.title("滚动条Demo")
var1 = StringVar()  #定义一个变量用来接收
Label(root,bg='yellow',textvariable=var1,width=8).pack()
thelb = Listbox(root)
thelb.pack()
for i in ['王昭君','西施','貂蝉','杨贵妃','python','java','php']:
    thelb.insert(END,i)
def show():
    value = thelb.get(thelb.curselection())  #获取光标在这个listbox上选定的值
    var1.set(value)
Button(root,text='获取',command=show).pack()
mainloop()

from tkinter import *
root = Tk()
root.title("Scrollbar类型滚动条")
sb = Scrollbar(root)
sb.pack(side=RIGHT,fill=Y)
lb = Listbox(root,yscrollcommand= sb.set)
for i in range(1000):
    lb.insert(END,i)
lb.pack(side=RIGHT)
sb.config(command=lb.yview)
mainloop()

from tkinter import *
root = Tk()
root.title("Scalez精准滚动条")
l = Label(root,text='',bg='yellow',width=10)
l.pack()
def show(v):
    l.config(text='长度为：' + v)   #这个是改变label标签的text
Scale(root,from_=0,to=66,tickinterval=3,resolution=3,length=200,orient=VERTICAL,command=show).pack()
Scale(root,from_=0,to=100,tickinterval=5,resolution=5,\
      length=500,orient=HORIZONTAL,command=show).pack()  #这个时候会产生一个参数，传给函数就行
mainloop()