Python Tkinter庫初體驗_02_Button

# noinspection PyUnresolvedReferences
from  tkinter import  *
root=Tk()

def hellobutton():
    print('hello button')

#通過點擊來執行綁定方法，打印hello
Button(root,text='hello!!',command=hellobutton).pack()
root.mainloop()

#加一個relief=FLAT，就跟Label一樣了
Button(root,text='hello2',relief=FLAT).pack()
root.mainloop()

#設置button的效果
Button(root,text='hello',relief=FLAT).pack()
Button(root,text='hello',relief=GROOVE).pack()
Button(root,text='hello',relief=RAISED).pack()
Button(root,text='hello',relief=RIDGE).pack()
Button(root,text='hello',relief=SOLID).pack()
Button(root,text='hello',relief=SUNKEN).pack()
root.mainloop()

#Button文本與圖像,,,,,  compound是位圖和文本的關係
Button(root,text='button',compound='bottom',bitmap='error').pack()
Button(root,text='button',compound='left',bitmap='error').pack()
Button(root,text='button',compound='right',bitmap='error').pack()
Button(root,text='button',compound='top',bitmap='error').pack()
Button(root,text='button',compound='center',bitmap='error').pack()
root.mainloop()

#使用對象來設置button的寬度和高度
b1=Button(root,width=10,height=2,text='b1111',bg='yellow')
b1.pack()

#使用屬性來設置
b2=Button(root,text='b2222')
b2['width']=30
b2['height']=3
b2['relief']=SUNKEN
b2.pack()

#使用configure方法指定
b3=Button(root,text='b33333')
b3.configure(width=30,height=3,bg='blue')
b3.pack()
root.mainloop()

#設置button文本在控件上的顯示位置
#簡單就是美！
for a in ['n','s','e','w','ne','nw','se','sw']:
    Button(root,
    text = 'anchor',
    anchor = a,
    width = 30,
    height = 4).pack()
root.mainloop()

#設置button的前景色fg，和背景色bg
Button(root,text='我是前景色',fg='blue').pack()
Button(root,text='我是背景色',bg='yellow').pack()
root.mainloop()

#button焦點
def cb1():
    print('button 1 clicked')
def cb2():
    print('button2 clicked')
def cb3():
    print('button3 clicked')

b1=Button(root,text='button1',command=cb1)
b2=Button(root,text='button2')
b3=Button(root,text='Button3',command=cb3)
b2.bind('<Return>',cb2)
b1.pack()
b2.pack()
b3.pack()
b2.focus_set()
root.mainloop()

#通過回車來獲得控件的event信息
def printEvent(event):
    print('event.time',event.time)
    print('event.type', event.type)
    print('event.widget', event.widget)
    print ('event.WidgetId = ', event.widget)
    print('event.KeySymbol = ', event.keysym)

b = Button(root, text='Infomation')
b.bind("<Return>", printEvent)
b.pack()
b.focus_set()
root.mainloop()

#設置button的寬度和高度,三種方式
b=Button(root,text='button',width=30,height=20)
b['width']=10
b['height']=10
b.configure(width=50,height=50)
b.pack()
root.mainloop()

#設置button外觀效果
for i in ['raised','sunken','groove','ridge']:
    Button(root,text=i,relief=i,width=30).pack()
root.mainloop()

#設置button狀態,（注意是設置state，relief是類型的意思）
def state():
    print('state')
for i in ['normal','active','disabled']:
    Button(root,text=i,state=i,width=30,height=10,command=state).pack()
root.mainloop()

#設置button和textvariable
def changeText():
    if b['text'] == 'text':
        v.set('change')
        print ('change')
    else:
        v.set('text')
        print ('text')
v = StringVar()
b = Button(root,textvariable = v,command = changeText)
v.set('text')
b.pack()
root.mainloop()