我正在使用Tkinter进行python的GUI编程 我使用下面的代码在我的Tkinter根窗口中创建了4个帧(Frame1,Frame2,Frame3和Frame4):
import tkinter as tki
class App(object):
def __init__(self):
self.root = tki.Tk()
self.root.wm_title("Play With python")
for r in range(8):
self.root.rowconfigure(r, weight=1)
for c in range(2):
self.root.columnconfigure(c, weight=1)
# Create Frames
Frame1 = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Frame1.grid(row = 0, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
Frame2 = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Frame2.grid(row = 2, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
Frame3 = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Frame3.grid(row = 4, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
Frame4 = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Frame4.grid(row = 6, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
app = App()
app.root.mainloop()
我想用 for循环做同样的事情,使我的代码可读,就像在我的真实代码中一样,帧数大约是12。
我正在尝试使用以下代码输出相同的内容:
import tkinter as tki
class App(object):
def __init__(self):
self.root = tki.Tk()
self.root.wm_title("Play With python")
for r in range(8):
self.root.rowconfigure(r, weight=1)
for c in range(2):
self.root.columnconfigure(c, weight=1)
# Create Frames
j = 0
for i in range(1,5):
Framei = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Framei.grid(row = j, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
j = j + 2
app = App()
app.root.mainloop()
问题:
正如我可以看到的问题,此代码创建了4个帧,但名称引用与 Framei 相同(而不是Frame1,Frame2,Frame3和Frame4)。 但我想要4个不同名称的帧(Frame1,Frame2,Frame3和Frame4)。
我知道我的问题与在运行时创建变量非常相关,但是当我第一次应用它时面临问题。
我使用的Python版本是3.0.1 请帮忙......
答案 0 :(得分:3)
您应该将Frame
个实例放在一个列表中,如下所示:
import tkinter as tki
class App(object):
def __init__(self):
self.root = tki.Tk()
self.root.wm_title("Play With python")
for r in range(8):
self.root.rowconfigure(r, weight=1)
for c in range(2):
self.root.columnconfigure(c, weight=1)
# Create a list of the Frames in the order they were created
frames = []
j = 0
for i in range(1,5):
Frame = tki.Frame(self.root, borderwidth=1, bg = 'blue')
Frame.grid(row = j, column = 0, rowspan = 2, columnspan = 2, sticky = 'w, e, n, s')
# Add the Frame to the list
frames.append(Frame)
# Also, just as an FYI, j = j + 2 can be better written like this
j += 2
# To demonstrate
print(frames)
# This is the first Frame created
print(frames[0])
app = App()
app.root.mainloop()
要访问框架,只需将列表编入索引。