如何替换python中的打印文本行？

Question

Basically i want to replace a printed string with another. My code reads something like: while True:, a += random.randint(1,2), time.sleep(1), print(a) This works but looks bad so i was wondering how i can replace the printed text with new text each time it prints.

Answer 1

I think this link can answer your question. Try

while True:
    a += random.randint(1,2)
    time.sleep(1)
    print(a,end='\r')

Answer 2

You can use the replace() function.

Usage :

txt = "I like bananas"

x = txt.replace("bananas", "apples")

print(x)

while True: 
  a += random.randint(1,2)
  time.sleep(1)
  print(a)
  x = replace(a, "new string")
  print(x)

Answer 3

Depends what you are trying to do:

The simple answer is use the character \r which moves back the cursor to the begin of the line:

print("Hello world\rAloha") outputs -> Aloha world

c=0
while True:
  print(c, end='\r') #remember to overwrite `end` or print will append a `\n` at the end
  c+=1

If you need anything more complicated consider using curses : https://docs.python.org/3/howto/curses.html

Probably even rich can do this kind of things but I'm not sure because I have never used it: https://pypi.org/project/rich/