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                            ## 條件渲染
### wx:if
在框架中，使用 wx:if="{{condition}}" 來判斷是否需要渲染該代碼塊：
~~~
<view wx:if="{{condition}}"> True </view>
~~~
也可以用 wx:elif 和 wx:else 來添加一個 else 塊：
~~~
<view wx:if="{{length > 5}}"> 1 </view>
<view wx:elif="{{length > 2}}"> 2 </view>
<view wx:else> 3 </view>
~~~
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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