在 Python 的“for”循环中追加多行数组时遇到问题

Question

Not sure how to word my question. I'm trying to collect data with input in a for loop and append it every time. I want it to look like this: Each loop of input , I want to enter: SOL $XXX $ZZZ , BTC $XXX $ZZZ , ETH $XXX $ZZZ , etc.

And I want the finished output to look like this:

* `BTC 4/12@07:59pm :: $291.42 @ $40,173.45`
* `SOL 4/12@07:59pm :: $267.02 @ $103.28`
* `LTC 4/12@07:59pm :: $220.91 @ $104.82`
* `ETH 4/12@07:59pm :: $177.43 @ $3,031.23`
* `wETH 4/12@07:59pm :: $45.20 @ $3,031.23`
* `Total 4/12@07:59pm :: $1,001.98`

I'll be able to format it, I just can't figure out how to keep appending the input. I'm sure it'll be something simple that I just can't picture at the moment. Hopefully I worded this well enough for someone to understand my query.
Thanks in advance.

Answer 1

So we have 2 issues here. 1 making the for loop, 2 printing stuff out.

For 1 we'll just do a while loop (since we don't know when you'll stop) based on the input:

from datetime import datetime
user_input = "not empty"
inputs_list = []
while True:
  user_input = input("What are your coordinates?")
  if user_input == "":
    break
  split_string = user_input.split(" ", 1)
  string_with_date = datetime.now().strftime(
    "{prefix} %m/%d@%I:%M%p {coordinates}".format(prefix=split_string[0], coordinates=split_string[1])
  )
  inputs_list.append(string_with_date)

This will keep looping until you give an empty return to the input call. Then we can print all of your results with:

for row in inputs_list:
  print("* `{row}`".format(row=row))

The heavy lifting is done by this part:

string_with_date = datetime.now().strftime(
    "{prefix} %m/%d@%I:%M%p {coordinates}".format(prefix=split_string[0], coordinates=split_string[1])
  )

We use the split method to cut your inputs at the first space and glue them back together in the strftime argument with the date in between.

For more info on strftime or on split , check the documentation linked in this message.