如何用Python将单行多空格分隔的向量数据逐行写入TXT文件？

Got it, let's solve this problem step by step. You're dealing with a line full of vector entries separated by exactly 13 spaces, and you want each vector on its own line in a new text file. Here's how to handle this with Python:

Basic Solution (Exact 13 Spaces as Separator) #

If you're certain the vectors are split by exactly 13 spaces, you can use Python's built-in string split() method with the precise separator:

# Open input and output files in one go (cleaner resource management)
with open('your_input_file.txt', 'r') as infile, open('output_vectors.txt', 'w') as outfile:
    # Iterate over each line in the input file (works even if there are multiple such lines)
    for line in infile:
        # Split the line using 13 spaces as the delimiter
        vector_list = line.split(' ' * 13)
        # Filter out empty strings (in case there are leading/trailing spaces in the line)
        cleaned_vectors = [vec.strip() for vec in vector_list if vec.strip()]
        # Write each vector to a new line in the output file
        for vec in cleaned_vectors:
            outfile.write(f"{vec}\n")

Robust Solution (Handles 13+ Spaces) #

If there's a chance the separator might be 13 or more consecutive spaces (e.g., typos where extra spaces were added), use regular expressions to split more flexibly:

import re

with open('your_input_file.txt', 'r') as infile, open('output_vectors.txt', 'w') as outfile:
    for line in infile:
        # Split on 13 or more consecutive spaces
        vector_list = re.split(r'\s{13,}', line.strip())
        # Remove any empty entries from the split result
        cleaned_vectors = [vec for vec in vector_list if vec]
        for vec in cleaned_vectors:
            outfile.write(f"{vec}\n")

How This Works: #

• The with statement ensures files are properly closed after processing, no need to manually call close().
• split(' ' *13) targets the exact 13-space separator you mentioned.
• The regex \s{13,} matches 13 or more whitespace characters (swap with {13,} if you only want to match spaces, not tabs/newlines).
• The cleaning step removes any empty strings that might come from leading/trailing separators in the original line.

Just replace your_input_file.txt with your actual input filename, and output_vectors.txt with your desired output filename, and this should do exactly what you need.

内容的提问来源于stack exchange，提问作者gradstudent61