from tkinter import * 注意是小写的
#简易文本开启和编辑器
from tkinter import *
from tkinter.scrolledtext import ScrolledText
def load():
with open(filename.get()) as file:
contents.delete('1.0',END)
contents.insert(INSERT,file.read())
def save():
with open(filename.get(),'w')as file:
file.write(contents.get('1.0',END))
def alert():
print("xxxxx")
top=Tk()
top.title("Simple Editor")
contents=ScrolledText()
contents.pack(side=BOTTOM,expand=True,fill=BOTH)
filename=Entry()
filename.pack(side=LEFT,expand=True,fill=X)
Button(text='Open',command=load).pack(side=LEFT)
Button(text='Save',command=save).pack(side=LEFT)
Button(text='Alert',command=alert).pack(side=LEFT)
mainloop()