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1）給你一個變量`var float64 = 1.2`，請使用反射來得到它的`reflect.Value`，然后獲取對

應的Type, Kind和值，并將reflect.Value轉換成interface{},再 將interface{}轉換成float64.

![](https://img.kancloud.cn/ff/70/ff709f86c0c2ac8548332429e62aa295_1209x654.png)

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2）如下代碼，可以正確嗎？？為什么？

![](https://img.kancloud.cn/d0/42/d0422dbf6802847646329e1d6cc6ef74_1280x708.png)



**答：** 錯誤，因為如果要修改str的值，必須要調用**Elem**才能修改，否則報錯，還有，reflect.ValueOf(str)，沒有接受的內存地址，所以無法修改，必須改成，**（&str）** 傳入真正的內存空間















                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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