不在控制台上打印任何内容

Question

import Tkinter
import tkMessageBox
import xlwt
from xlrd import open_workbook
from tempfile import TemporaryFile
from xlwt import Workbook
import tkSimpleDialog
import tkMessageBox
from tkFileDialog import *
top = Tkinter.Tk()
#FSR
def fsr():
   tkMessageBox.showinfo("Open", "Select Feedback file")
   filename1 = askopenfilename(filetypes=[("Excel worksheets","*.xls")])
   if filename1=='':
         tkMessageBox.showerror('Error', 'All files must be uploaded')
         fsr()
B1 = Tkinter.Button(top, text = "Details upload", command = fsr)
B1.pack()
top.mainloop()
wb1 = open_workbook(filename1)
sheet1 = wb1.sheet_by_index(0)
batch = []
print "****"
for row in range(sheet1.nrows):
    if(row!=0):
        batch.append(sheet1.cell(row,16).value)
        print "****"

此代码段不会在控制台上打印任何内容。打印“****”无效。而且，如果发出top.mainloop（），则不会显示tk窗口。怎么解决这个问题？

Answer 1

将代码放在import Tkinter import tkMessageBox import xlwt from xlrd import open_workbook from tempfile import TemporaryFile from xlwt import Workbook import tkSimpleDialog import tkMessageBox from tkFileDialog import * #FSR def fsr(): while True: tkMessageBox.showinfo("Open", "Select Feedback file") filename1 = askopenfilename(filetypes=[("Excel worksheets","*.xls")]) if filename1: break tkMessageBox.showerror('Error', 'All files must be uploaded') wb1 = open_workbook(filename1) sheet1 = wb1.sheet_by_index(0) batch = [] print "****" for row in range(sheet1.nrows): if(row!=0): batch.append(sheet1.cell(row,16).value) print "****" top = Tkinter.Tk() B1 = Tkinter.Button(top, text="Details upload", command=fsr) B1.pack() top.mainloop() 中，如下所示：

app/views/wordclouds