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                            ## expires

> 為用戶訪問網站的內容設定一個過期時間，當用戶第一次訪問到這些內容時，會把這些內容存儲在用戶瀏覽器本地，這樣用戶第二次及之后繼續訪問該網站，瀏覽器就會檢查已經緩存在用戶瀏覽器本地的內容，就不會去瀏覽器下載了，直到緩存的內容過期或者被清除為止。

~~~csharp
## Add expires header according to URI(path or dir).

location ~ ^/(images|javascript|js|css|flash|media|static)/ {
    expires 360d;
}
~~~

  
  
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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