def event4():
global text
text = button4['text']
context = chapter(book_info.get(text), title)
read_context(window,
result=result,
chapter_name=text,
cache=context,
sc=sc,
mc=mc)
for c in dc.keys():
c.destroy()
def last():
"""
打开最后一章
"""
cha = chapter(chapter_info.get(new_cha), title)
read_context(window,
result=result,
chapter_name=new_cha,
cache=cha,
sc=search_controls,
mc=mid_controls)
for c in mid_controls.keys():
c.destroy()
for c in search_controls.keys():
c.place_forget()
