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#### 1、問題描述

迪愛斯項目中，冰點和熱點圖多點擊幾次就會造成IE瀏覽器無響應的現象。

#### 2、問題原因

大量數據同步使用canvas渲染，造成瀏覽器卡死。

#### 3、解決方案

將同步渲染機制修改為異步渲染，只需將渲染內容包裹到setTimeout里面即可。

```

setTimeout(function() {

//渲染邏輯

})

```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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