from tkinter import Tk
from tkinter import scrolledtext
from tkinter import END # 記得引入 END
root = Tk()
st = scrolledtext.ScrolledText(root)
st.insert("insert", "python")
st.delete(1.0, END) # 使用 delete
st.pack()
root.mainloop()原文：https://www.cnblogs.com/shiyongge/p/10223624.html