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                            ##  1.頁面優化
```
1.壓縮css,js,圖片

2.減少http請求次數， ?合并css,js ??合并圖片（雪碧圖）

3.使用CDN

4.減少dom元素數量

5.圖片懶加載

6.靜態資源另外用無cookie的域名

7.減少dom的訪問（緩存dom）

8.巧用事件委托

9.樣式表置頂、腳本置低

```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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