Python脚本需求：实现邮箱输出及while True:nr+=1循环自增逻辑

Alright, let's get your script sorted. You've already fixed the email extraction to output [test@gmail.com] instead of an empty list, and now you just need to add that infinite loop where nr keeps incrementing. Here's a complete, adjusted version of your script that combines both features:

import urllib
import urllib2
import cookielib
import re
import requests

# Initialize the nr variable starting at 0
nr = 0

# Create a requests session (as you were using before)
session = requests.Session()

# Infinite loop to keep nr incrementing
while True:
    nr += 1
    print(f"Current nr value: {nr}")  # Optional: Print to track the increment
    
    # Your existing email extraction logic (fixed to return [test@gmail.com])
    # Replace this with your actual page fetching/processing code if needed
    sample_content = "Some text containing test@gmail.com"
    email_pattern = re.compile(r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b')
    extracted_emails = email_pattern.findall(sample_content)
    
    print(f"Extracted emails: {extracted_emails}")  # Outputs [test@gmail.com]
    
    # Optional: Add a small delay if you don't want to spam the console/requests
    # import time
    # time.sleep(1)

Key Notes: #

• nr Initialization: We start nr at 0 before the loop so the first increment takes it to 1.
• Infinite Loop: The while True: block runs indefinitely, incrementing nr every iteration.
• Email Extraction: The regex pattern properly matches standard email formats, which is why it now captures test@gmail.com instead of returning an empty list.
• Session Handling: We keep the requests.Session() object initialized outside the loop (more efficient than recreating it every time).

If you need to tie the nr increment to specific actions (like fetching a new page with each nr value), just adjust the loop to use nr in your request parameters or URL.

内容的提问来源于stack exchange，提问作者Lfofe