Answers to frequently asked questions from the golang function community

Multiple parameter processing and return value methods of functions in Golang: 1. Define a function with multiple parameters (func myFunction(a int, b string, c float64)). 2. Return multiple values ​​(func myFunction() (int, string)). 3. Handle a variable number of parameters (func myFunction(a ...int)).

Golang function community’s answers to frequently asked questions

Question 1: How to define a function with multiple parameters?

func myFunction(a int, b string, c float64) {
  // 函数体
}

Question 2: How to return multiple values?

func myFunction() (int, string) {
  return 1, "hello"
}

Question 3: How to deal with variable number of parameters?

func myFunction(a ...int) {
  for _, v := range a {
    // 处理 v
  }
}

Practical example

Consider a function that calculates the average of two numbers:

// 计算两数平均值
func average(a, b int) float64 {
  return float64(a+b) / 2
}

// 测试平均值函数
func main() {
  result := average(5, 10)
  fmt.Println(result) // 打印 7.5
}

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