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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語言的函數可以返回多個值,而事實上并不是所有的返回值都用得上。此時可以使用匿名變量,用下劃線`_`表示。如下: ``` func GetData() (int, int) { return 100, 200 } func main() { a, _ := GetData() _, b := GetData() fmt.Println(a, b) } ``` **匿名變量不占用內存空間,不會分配內存。匿名變量與匿名變量之間也不會因為多次聲明而無法使用。** 提示:在`Lua`等編程語言里,匿名變量也被叫做啞元變量。
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                              哎呀哎呀视频在线观看