python Tkinter的Text组件中创建x轴和y轴滚动条，并且text文本框自动更新（三）

要求对文件边读边写并显示对话框。

1.加线程之后，必须要文件写完才显示对话框。错误代码：

 # encoding: utf-8
 import time
 from Tkinter import *
 import threading

 def write(file1,file2):
     with open(file1, 'r+') as f1:
         for line in f1:
             # print line
             f2 = open(file2, 'a+')
             f2.write(line)
             time.sleep(0.00001)

 def windows1(file2):
     root = Tk()
     root.title("serial log")
     s1 = Scrollbar(root)
     s1.pack(side=RIGHT, fill=Y)
     s2 = Scrollbar(root, orient=HORIZONTAL)
     s2.pack(side=BOTTOM, fill=X)
     textpad = Text(root, yscrollcommand=s1.set, xscrollcommand=s2.set, wrap='none')
     textpad.pack(expand=YES, fill=BOTH)
     s1.config(command=textpad.yview)
     s2.config(command=textpad.xview)
     with open(file2) as f:
         while True:
             line = f.readline()
             textpad.pack()
             textpad.insert(END, line)
             textpad.see(END)
             root.update()
 if __name__ == '__main__':
     file1 = 'log.txt'
     file2 = 'result.txt'
     threads = []
     t1 = threading.Thread(target=write,args=(file1,file2))
     threads.append(t1)
     t2 = threading.Thread(target=windows1,args=(file2,))
     threads.append(t2)
     for t in threads:
         # t.setDaemon(True)
         t.start()
     # for t in threads:
     #     t.join()

注：# t.setDaemon(True)禁掉是因为写文件只运行了一行。# t.join() 因为程序会卡死。错误原因start()使用需要重新写run()。

正确代码：

调用两个类

 # encoding: utf-8
 import time
 from Tkinter import *
 import threading

 class MyThread(threading.Thread):

     def __init__(self, func, args):
         threading.Thread.__init__(self)
         self.func = func
         self.args = args

     def run(self):
         self.func(*self.args)

 def write(file1,file2):
     with open(file1, 'r+') as f1:
         for line in f1:
             # print line
             f2 = open(file2, 'a+')
             f2.write(line)
             time.sleep(0.00001)

 def windows1(file2):
     root = Tk()
     root.title("serial log")
     s1 = Scrollbar(root)
     s1.pack(side=RIGHT, fill=Y)
     s2 = Scrollbar(root, orient=HORIZONTAL)
     s2.pack(side=BOTTOM, fill=X)
     textpad = Text(root, yscrollcommand=s1.set, xscrollcommand=s2.set, wrap='none')
     textpad.pack(expand=YES, fill=BOTH)
     s1.config(command=textpad.yview)
     s2.config(command=textpad.xview)
     with open(file2) as f:
         while True:
             line = f.readline()
             textpad.pack()
             textpad.insert(END, line)
             textpad.see(END)
             root.update()

 if __name__ == '__main__':
     file1 = 'log.txt'
     file2 = 'result.txt'
     threads = []
     t1 = MyThread(write, (file1,file2))
     threads.append(t1)
     t2 = MyThread(windows1,(file2,))
     threads.append(t2)
     for t in threads:
         t.setDaemon(True)
         t.start()
     for t in threads:
         t.join()

调用一个类一个class

 # encoding: utf-8
 import time
 from Tkinter import *
 import threading

 class MyThread(threading.Thread):

     def __init__(self, func, args):
         threading.Thread.__init__(self)
         self.func = func
         self.args = args

     def run(self):
         self.func(*self.args)

 class write(object):

     def __int__(self,file1,file2):

         self.file1 = file1
         self.file2 = file2
         self.write_txt()

     def write_txt(self):
         with open(self.file1, 'r+') as f1:
             for line in f1:
                 # print line
                 f2 = open(self.file2, 'a+')
                 f2.write(line)
                 time.sleep(0.00001)

 def windows1(file2):
     root = Tk()
     root.title("serial log")
     s1 = Scrollbar(root)
     s1.pack(side=RIGHT, fill=Y)
     s2 = Scrollbar(root, orient=HORIZONTAL)
     s2.pack(side=BOTTOM, fill=X)
     textpad = Text(root, yscrollcommand=s1.set, xscrollcommand=s2.set, wrap='none')
     textpad.pack(expand=YES, fill=BOTH)
     s1.config(command=textpad.yview)
     s2.config(command=textpad.xview)
     with open(file2) as f:
         while True:
             line = f.readline()
             textpad.pack()
             textpad.insert(END, line)
             textpad.see(END)
             root.update()

 if __name__ == '__main__':

     file1 = 'C:\Users\yuxinglx\Downloads\\test\\2018-07-16\log.txt'
     file2 = 'result.txt'
     w = write()

     threads = []
     t1 = MyThread(w.__int__, (file1,file2,))
     threads.append(t1)
     t2 = MyThread(windows1,(file2,))
     threads.append(t2)
     for t in threads:
         t.setDaemon(True)
         t.start()
     for t in threads:
         t.join()

以上代码在python2.7.9上运行可行。