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                            ```python
#禁用cookies（也就是不啟用cookies middleware，不向server發送cookies）
#有些網站通過cookies的使用發現爬蟲
# True禁用，False啟用
COOKIES_ENABLED = True

# 單位秒,爬取間隔時間為(0.5~1.5)*DOWNLOAD_DELAY，默認為0
DOWNLOAD_DELAY = 0

# Scrapy downloader 并發請求的最大值，默認為16
CONCURRENT_REQUESTS = 16

# 對單個網站進行并發請求的最大值，默認16
CONCURRENT_REQUESTS_PER_DOMAIN = 16

# 對單個IP進行并發請求的最大值，默認為0
CONCURRENT_REQUESTS_PER_IP = 0	
```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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