import tkinter import pyexcel_xls from infoWindow import InfoWindow from treeWindow import TreeWindow import os if name == 'main': win = tkinter.Tk() win.title('文学鉴赏') win.geometry('1280x720') win.option_add("*Font", "30") # 设置字体大小为30 # 创建菜单栏 menubar = tkinter.Menu(win) win.configure(menu=menubar) # 在菜单栏当中创建选项 menu1 = tkinter.Menu(menubar, tearoff=False) menu1.add_command(label='退出', command=win.quit) menubar.add_cascade(label='设置', menu=menu1) path = os.path.join(os.getcwd(), 'poem.xls') # path = 'D:/python1801/Day19/1文学鉴赏上/poem.xls' dic_data = pyexcel_xls.get_data(path) infowin = InfoWindow(win) treewin = TreeWindow(win, dic_data, infowin) win.mainloop()调整这个代码让界面字体为华文行楷大小为50

请尝试修改代码如下，添加设置字体的语句：

import tkinter
import pyexcel_xls
from infoWindow import InfoWindow
from treeWindow import TreeWindow
import os

if __name__ == '__main__':
    win = tkinter.Tk()
    win.title('文学鉴赏')
    win.geometry('1280x720')
    win.option_add("*Font", "50")  # 设置字体大小为50，字体为华文行楷
    # 创建菜单栏
    menubar = tkinter.Menu(win)
    win.configure(menu=menubar)
    # 在菜单栏当中创建选项
    menu1 = tkinter.Menu(menubar, tearoff=False)
    menu1.add_command(label='退出', command=win.quit)
    menubar.add_cascade(label='设置', menu=menu1)
    path = os.path.join(os.getcwd(), 'poem.xls')
    # path = 'D:/python1801/Day19/1文学鉴赏上/poem.xls'
    dic_data = pyexcel_xls.get_data(path)
    infowin = InfoWindow(win)
    treewin = TreeWindow(win, dic_data, infowin)
    win.mainloop()

注意，如果你的电脑没有华文行楷字体，可能会显示不正常。