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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # Go 語言接口 Go 語言提供了另外一種數據類型即接口,它把所有的具有共性的方法定義在一起,任何其他類型只要實現了這些方法就是實現了這個接口。 ### 實例 ``` /* 定義接口 */ type interface_name interface { method_name1 [return_type] method_name2 [return_type] method_name3 [return_type] ... method_namen [return_type] } /* 定義結構體 */ type struct_name struct { /* variables */ } /* 實現接口方法 */ func (struct_name_variable struct_name) method_name1() [return_type] { /* 方法實現 */ } ... func (struct_name_variable struct_name) method_namen() [return_type] { /* 方法實現*/ } ``` ### 實例 ``` package main import ( "fmt" ) type Phone interface { call() } type NokiaPhone struct { } func (nokiaPhone NokiaPhone) call() { fmt.Println("I am Nokia, I can call you!") } type IPhone struct { } func (iPhone IPhone) call() { fmt.Println("I am iPhone, I can call you!") } func main() { var phone Phone phone = new(NokiaPhone) phone.call() phone = new(IPhone) phone.call() } ``` 在上面的例子中,我們定義了一個接口Phone,接口里面有一個方法call()。然后我們在main函數里面定義了一個Phone類型變量,并分別為之賦值為NokiaPhone和IPhone。然后調用call()方法,輸出結果如下: ``` I am Nokia, I can call you! I am iPhone, I can call you! ```
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