Question

from Tkinter import *

master = Tk()

def callback():
   print "click!"

b = Button(master, text="OK", command=callback)
b.pack()

mainloop()

现在在iPython中运行它会打印“click！”到控制台。如果我想在GUI框中显示脚本或函数的结果，在按钮下我该如何实现？盒子的大小是否需要先进分配？

编辑：我想要调用的函数实际上比上面的回调更复杂。当我运行以下代码时，它打印

而不是打印clusOne.head（）

<function centroid at 0x2cf3410>

到输出框。我希望能够打印由此函数产生的数据行而不是指针地址。

master = Tk()


# The output box prints an address (pointer) as a result of running this function. 
#I would like to see the output in the box.

df=pd.read_csv('8162013.csv')
df=df.set_index('date1')

# Initialize the centroid.
cen1=df.mean()
v=ny.random.randn()+10
cen2=df.mean()-v
train=df[0:1615]


def centroid(train,cen1,cen2):

  for i in range(0,3):

    # Sum of squares. Results in a series containing 'date' and 'num' 
    sorted1=((train-cen1)**2).sum(1)
    sorted2=((train-cen2)**2).sum(1)

    # This makes a list of the cluster1 and cluster2
     a=[train.ix[i] for i in train.index if sorted1[i]<sorted2[i]]
     b=[train.ix[i] for i in train.index if sorted1[i]>=sorted2[i]]

     # Back to a dataframe...
    clusOne=pd.DataFrame(a,columns=['ES','US','GC'])
    clusTwo=pd.DataFrame(b,columns=['ES','US','GC'])

 # Update the centroid.
    cen1=clusOne.mean()
    cen2=clusTwo.mean()

     print clusOne.head()
     print "I'm computing your centroid."




def callback():
   listbox.insert(END, centroid)

  b = Button(master, text="Cluster", command=callback)
  listbox = Listbox(master)
   b.pack()
   listbox.pack()

   mainloop()

Answer 1

您可以创建一个tkinter列表框，并在每次有人按下按钮时向其添加文本：

from Tkinter import *

master = Tk()

def callback():
   listbox.insert(END, "Click!")

b = Button(master, text="OK", command=callback)
listbox = Listbox(master)
b.pack()
listbox.pack()

mainloop()

tkinter事件绑定到按钮

1 个答案: