1059389705 发表于 2020-1-1 12:15:56

关于tkinter的,莫名错误

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1705, in __call__
    return self.func(*args)
File "C:\Users\Administrator\Desktop\数据库\1.2.py", line 189, in <lambda>
    editmenu.add_command(label="创建", command=lambda:new(self.win, conn))
File "C:\Users\Administrator\Desktop\数据库\1.2.py", line 102, in new
    ttk.Button(newtp, text='确定', command = newtp.destroy())
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\tkinter\ttk.py", line 614, in __init__
    Widget.__init__(self, master, "ttk::button", kw)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\tkinter\ttk.py", line 559, in __init__
    tkinter.Widget.__init__(self, master, widgetname, kw=kw)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 2299, in __init__
    (widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError: bad window path name ".!toplevel"

这是什么原因啊

zltzlt 发表于 2020-1-1 12:21:56

把代码发上来。

1059389705 发表于 2020-1-1 13:48:47

zltzlt 发表于 2020-1-1 12:21
把代码发上来。

#新建成绩
def new(conn):
    newtp = Toplevel()
    newtp.geometry('300x500+200+200')
    Label(newtp, text='学号:').pack()
    sto = ttk.Entry(newtp)
    sto.pack()
    Label(newtp, text='学科号:').pack()
    sc = ttk.Entry(newtp)
    sc.pack()
    Label(newtp, text='分数:').pack()
    gr = ttk.Entry(newtp)
    gr.pack()
   
    cursor = conn.cursor()
    cursor.execute("""
    use stsc
    INSERT INTO score VALUES ('777','377','772')
    """ )
    conn.commit()
    ttk.Button(newtp, text='确定', command = newtp.destroy())
    newtp.mainloop
这是截取错的这一部分小代码   我是做一个数据库学生管理系统

zltzlt 发表于 2020-1-1 13:49:22

应该这样:

#新建成绩
def new(conn):
    newtp = Toplevel()
    newtp.geometry('300x500+200+200')
    Label(newtp, text='学号:').pack()
    sto = ttk.Entry(newtp)
    sto.pack()
    Label(newtp, text='学科号:').pack()
    sc = ttk.Entry(newtp)
    sc.pack()
    Label(newtp, text='分数:').pack()
    gr = ttk.Entry(newtp)
    gr.pack()
   
    cursor = conn.cursor()
    cursor.execute("""
    use stsc
    INSERT INTO score VALUES ('777','377','772')
    """ )
    conn.commit()
    ttk.Button(newtp, text='确定', command = newtp.destroy)
    newtp.mainloop()

1059389705 发表于 2020-1-1 13:54:59

zltzlt 发表于 2020-1-1 13:49
应该这样:

哇原来这么简单   谢谢啦{:5_100:}
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