如何在Golang中将可变长度参数作为参数传递给另一个函数?

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英文:

How to pass variable length arguments as arguments on another function in Golang?

问题

如何在Go中传递可变长度的参数?例如,我想调用以下函数:

func MyPrint(format string, args ...interface{}) {
  fmt.Printf("[MY PREFIX] " + format, ???)
}

可以这样调用:

MyPrint("yay %d", 213)
MyPrint("yay")
MyPrint("yay %d %d", 123, 234)
英文:

How to pass variable length arguments in Go? for example, I want to call

func MyPrint(format string, args ...interface{}) {
  fmt.Printf("[MY PREFIX] " + format, ???)
}

// to be called as: MyPrint("yay %d", 213) 
//              or  MyPrint("yay")
//              or  MyPrint("yay %d %d",123,234)

答案1

得分: 109

啊,找到了...接受可变长度参数的函数被称为可变参数函数。示例代码如下:

package main

import "fmt"

func MyPrint(format string, args ...interface{}) {
  fmt.Printf("[MY PREFIX] " + format, args...)
}

func main() {
 MyPrint("yay %d %d\n",123,234);
 MyPrint("yay %d\n ",123);
 MyPrint("yay %d\n");
}
英文:

Ah found it...functions that accept variable length arguments are called Variadic Functions. Example:

package main

import "fmt"

func MyPrint(format string, args ...interface{}) {
  fmt.Printf("[MY PREFIX] " + format, args...)
}

func main() {
 MyPrint("yay %d %d\n",123,234);
 MyPrint("yay %d\n ",123);
 MyPrint("yay %d\n");
}

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  • 本文由 发表于 2014年11月27日 19:04:56
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