string迭代器已经耗尽了（它迭代了strings1.txt文件中的行，所以你只能看到一次对主机的迭代）。相反，将主机/字符串读取到一个列表中，然后发出请求：

with open("hosts.txt", "r") as f_hosts:
    hosts = list(map(str.strip, f_hosts))

with open("strings.txt", "r") as f_strings:
    strings = list(map(str.strip, f_strings))

for h in hosts:
    for s in strings:
        url = f"https://{h}/?test={s}"
        print(url)
        # requests.get(url)
        # ...

字符串
印刷品：

https://google.com/?test=x
https://google.com/?test=y
https://google.com/?test=z
https://target.com/?test=x
https://target.com/?test=y
https://target.com/?test=z
https://bing.com/?test=x
https://bing.com/?test=y
https://bing.com/?test=z

型

看起来问题与您如何在循环内从strings1.txt中阅读字符串有关。一旦到达文件的末尾，后续读取尝试将不会产生任何更多值。要为每个主机重新遍历strings1.txt的行，您需要重新打开文件或返回到开头。

import requests

with open('hosts.txt', 'r') as file:
    with open('strings1.txt', 'r') as strings:
        for line in file:
            host = line.strip()
            
            # Rewind the strings file to the beginning for each host
            strings.seek(0)
            
            for string in strings:
                string = string.strip()
                url = f"https://{host}/?test={string}"
                resp = requests.get(url).status_code
                print(f'Results for {url}\n{resp}')

字符串