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In the Go language, anonymous functions can be passed as parameters to other functions to achieve the function of passing anonymous functions. The syntax is: funcName(func(params) return_type). The anonymous function type must be consistent with the function parameter type, and its domain variables must be accessible.
Function anonymous function parameter passing in Go language
Anonymous function is a function without a name. They are often used as arguments or closures to other functions. In Go language, anonymous functions can be passed as parameters to other functions.
Syntax
The syntax for passing anonymous functions as parameters is as follows:
funcName(func(params) return_type)
where funcName
is the function to be called , func(params)
is an anonymous function, params
is the parameter of the anonymous function, return_type
is the return value type of the anonymous function.
Practical case
The following is a practical case using anonymous functions as parameters:
package main import "fmt" func main() { // 定义一个接收匿名函数作为参数的函数 myFunc := func(f func(int) int) { fmt.Println(f(10)) } // 定义一个匿名函数并将它作为参数传递给 myFunc myFunc(func(i int) int { return i * 2 }) }
In this example, myFunc
The function receives an anonymous function as a parameter, which takes an integer as a parameter and returns an integer. We then define an anonymous function and pass it as a parameter to myFunc
. The anonymous function multiplies the integer 10 by 2 and prints the result as 20.
Note
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