"""
-------------------------------------------------
开发记事本软件的菜单
-------------------------------------------------
"""
# encoding = utf-8
from tkinter import *
from tkinter.filedialog import *
from tkinter.colorchooser import *
class Application(Frame):
def __init__(self,master=None):
super().__init__(master)
self.master = master
self.textpad = None
self.pack()
self.createWight()
def createWight(self):
# 创建主菜单
menubar = Menu(root)
# 创建子菜单
menuFile = Menu(menubar)
menuEdit = Menu(menubar)
menuHelp = Menu(menubar)
# 将子菜单加入到主菜单
menubar.add_cascade(label="文件(F)", menu=menuFile)
menubar.add_cascade(label="编辑(E)", menu=menuEdit)
menubar.add_cascade(label="帮助(H)", menu=menuHelp)
# 添加菜单项
menuFile.add_command(label="新建", accelerator="ctrl+n", command=self.test)
menuFile.add_command(label="打开", accelerator="ctrl+o", command=self.openfile)
menuFile.add_command(label="保存", accelerator="ctrl+s", command=self.savefile)
menuFile.add_separator() # 添加分割线
menuFile.add_command(label="退出", accelerator="ctrl+q", command=self.exit)
# 将主菜单栏加入到根窗口
root["menu"] = menubar
# 文本编辑区
self.textpad = Text(root, width=50, height=30)
self.textpad.pack()
# 创建上下菜单
self.contextMenu = Menu(root)
self.contextMenu.add_command(label="背景颜色", command=self.test)
# 为右键绑定事件
root.bind("<Button-3>",self.createContextMenu)
def openfile(self):
self.textpad.delete("1.0", "end") # 把text控件中的所有内容清空
with askopenfile(title='打开文本文件') as f:
self.textpad.insert(INSERT, f.read())
self.filename = f.name
def savefile(self):
with open(self.filename, "w") as f:
c = self.textpad.get(1.0, END)
f.write(c)
def exit(self):
root.quit()
def test(self):
pass
def createContextMenu(self,event):
# 菜单再鼠标右键单击的坐标处显示
self.contextMenu.post(event.x_root, event.y_root)
if __name__ == "__main__":
root = Tk()
root.geometry("450x300+200+300")
root.title("简易记事本")
app = Application(master=root)
root.mainloop()
root.mainloop()

老师,我这个也是出这种问题,我试了下换gbk格式.检查了选择的文本是txt格式.也换了你们说的代码
with open(askopenfile(title='打开文本文件'), encoding='utf-8' )as f:
结果依旧报错,究竟是哪里出问题了?