根据文档，CrawlerProcess.crawl接受crawler或spider类，并且您可以通过CrawlerProcess.create_crawler从spider类创建crawler。
因此，您可以在开始爬网过程之前创建Crawler示例，然后检索所需的属性。
下面我给你一个例子，通过编辑你的原始代码的几行：

import scrapy
from scrapy.crawler import CrawlerProcess

class TestSpider(scrapy.Spider):
    name = 'test'
    start_urls = ['http://httpbin.org/get']

    def parse(self, response):
        self.crawler.stats.inc_value('foo')

process = CrawlerProcess({})
crawler = process.create_crawler(TestSpider)
process.crawl(crawler)
process.start()

stats_obj = crawler.stats
stats_dict = crawler.stats.get_stats()

# perform the actions you want with the stats object or dict

如果你想通过信号获取脚本中的统计信息。这会有帮助-

def spider_results(spider):
    results = []
    stats = []

    def crawler_results(signal, sender, item, response, spider):
        results.append(item)

    def crawler_stats(*args,**kwargs): # runs when spider closed
        stats.append(kwargs['sender'].stats.get_stats())

    dispatcher.connect(crawler_results, signal=signals.item_scraped)

    dispatcher.connect(crawler_stats, signal=signals.spider_closed)

    process = CrawlerProcess()
    process.crawl(spider)
    process.start()  # the script will block here until the crawling is finished
    return results, stats

希望能帮上忙！