Question

我有一个小程序，用于从arduino接收txt文件。问题是有时会打印一个空文件。我假设因为当时代码的接收部分是空的。当“t”为空时，有人可以帮助我使这段代码不写入文件，这样我可以阻止它写一个空白的txt文件吗？感谢

with open('sensData.txt','wb') as f:
while True:
 t = conn.recv(20)
 print t
 if not t:
    s.close()
    break
 f.write(t) #Write To File UNLESS BLANK

Answer 1

你需要试试这个：

  with open('sensData.txt','wb') as f:
    while True:
     t = conn.recv(1)
     print t
     if t =='':
        s.close()
        break
     f.write(t)

或者您可以填充字符串并在循环结束时立即写入

  with open('sensData.txt','wb') as f:
   receivedData = ""
    while True:
     t = conn.recv(1)
     print t
     if t =='':
        s.close()
        break
     receivedData+=t

   f.write(receivedData)

Answer 2

if t != "":
    f.write(t)

如果t为空，则应该有效

Python使用套接字文件传输

2 个答案: