在终端python2.7上动态更新同一位置的文本

Question

我的程序是用python2.7编写的，我想做一个动态更新。输出在表视图中，有数百个字符。我找到了一个非常好的答案here，但是，它压碎了100多个字符（如本文所承诺的）。而且，我不知道这个表有多少行，它是动态变化的。此外，我不想使用诅咒，因为我希望输出像运行“regular”命令一样内联到控制台中

输出示例： 你知道吗

+------+--------------+-------------+
| Type |  IP Address  |    Status   |
+------+--------------+-------------+
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
+------+--------------+-------------+

我尽量避免： 你知道吗

+------+--------------+-------------+
| Type |  IP Address  |    Status   |
+------+--------------+-------------+
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
+------+--------------+-------------+
+------+--------------+-------------+
| Type |  IP Address  |    Status   |
+------+--------------+-------------+
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
+------+--------------+-------------+
+------+--------------+-------------+
| Type |  IP Address  |    Status   |
+------+--------------+-------------+
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  aa  | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
| cccc | 10.11.10.10  | in Progress |
|  bb  | 10.11.10.10  | in Progress |
+------+--------------+-------------+

Answer 1

您可以使用ANSI代码上移多行。它应该在linux中工作：

import time
import sys

for i in range(0, 100):
  # print 4 lines
  print ("line 1\nline 2\nline 3")
  print (str(i))
  time.sleep(0.2)
  sys.stdout.write("\033[4A") # go up 4 lines

它将在某些终端工作。它在窗户腻子里起作用。如果返回的行数超过putty terminal中的行数，它将不允许您向上滚动文本，而是将光标移动到第一个可见行。Source of the ANSII code.