go - 具有非固定类型参数的函数

Question

在 GoLang 中是否可行:

func funcWithDynamicTypeArgs(param notFixedType) 
{

}

我希望 param 为 int 和 string 和 map 以及任何类型。换句话说:是否可以在 Go 中声明和使用带有动态类型参数的 function？

Answer 1

例如，

func function(param interface{}) {
}

---

The Go Programming Language Specification

Interface types

All types implement the empty interface:

interface{}

Type assertions

For an expression x of interface type and a type T, the primary expression

x.(T)

asserts that x is not nil and that the value stored in x is of type T. The notation x.(T) is called a type assertion.

---

参见 package fmt使用 package reflect处理任何类型的参数。例如，

func Print

func Print(a ...interface{}) (n int, err error)

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.