Events(事件) Events are given as strings, using a special event syntax:事件以字符串的方式给出,使用特殊的事件语法:<modifier-type-detail>Event Formats(事件格式)1.<Button-1>在小部件上按下鼠标按钮触发事件2.<B1-Motion>按下按钮并移动触发事件3.<ButtonRelease-1>松开按钮触发事件4.<Double-Button-1
tkinter 的pack()可以设置的属性如下: pack_configure(self, cnf={}, **kw)Pack a widget in the parent widget. Use as options: after=widget - pack it after you have packed widgetanchor=NSEW (or subset) - position widget according to given d