删除 Python 打印行中的字符

Question

I'm writing a program where I want the cursor to print letters on the same line, but then delete them as well, as if a person was typing, made a mistake, deleted back to the mistake, and kept typing from there.

All I have so far is the ability to write them on the same line:

import sys, time
write = sys.stdout.write

for c in text:  
    write(c)
    time.sleep(.5)

Answer 1

write('\b')  # <-- backup 1-character

Answer 2

Just to illustrate the great answers given by @user590028 and @Kimvais

sys.stdout.write('\b') # move back the cursor
sys.stdout.write(' ')  # write an empty space to override the
                       # previous written character.
sys.stdout.write('\b') # move back the cursor again.

# Combining all 3 in one shot: 
sys.stdout.write('\b \b')

# In case you want to move cursor one line up. See [1] for more reference.
sys.stdout.write("\033[F")

References
[1] This answer by Sven Marnachin in Python Remove and Replace Printed Items
[2] Blog post about building progress bars

Answer 3

当您使用print() ，您可以将 end 设置为\\r ，它将用新文本替换该行中的文本。

print(text, end="\r")