Golang anonymous functions and closures

This is a creation in Article, where the information may have evolved or changed.

Anonymous functions and closures:

Closures and anonymous functions are often used together, and you can use a closed package to access a local variable in a function (the variable being accessed refers to a pointer to a relationship, and the same local variable is manipulated), such as:

func closure ( x int) (func (), func (int)) {fmt. Printf ("Initial value x is:%d, memory address:%p\n", X, &x) F1: = Func () {x = x + 5 FMT. Printf ("x+5:%d, memory Address:%p\n", X, &x)} F2: = func (y int) {x = x + y fmt.    Printf ("x+%d:%d, memory Address:%p\n", y, X, &x)} return F1, F2}func main () {func1, Func2: = Closure (Ten) func1 () Func2 (Ten) Func2} 

The output is:
Initial value x is: 10, memory address: 0xc080000038
X+5:15, memory address: 0xc080000038
X+10:25, memory address: 0xc080000038
x+20:45, memory address: 0xc080000038  

Personal Understanding:

In fact, the most convenient way to understand closures is to consider a closure function as a class, and a closure function call is an instantiation of a class. Unfortunately, I am not yet able to grasp the essence of the concept of closure design and the philosophical ideas it contains.

Reference

Some of the information in the Golang function can be useful in understanding functions and closures in Golang http://www.cnblogs.com/yjf512/archive/2012/12/09/2810313.html
Http://www.ibm.com/developerworks/cn/linux/l-cn-closure/index.html
Http://wklken.me/posts/2014/03/02/05-func.html
http://my.oschina.net/u/698121/blog/157599
http://ieqi.net/2013/03/11/%E7%9C%8B%E8%8C%83%E4%BE%8B%E5%AD%A6-golang-%EF%BC%88%E5%8D%81%E4%BA%94%EF%BC%89-% E9%97%ad%e5%8c%85/http://www.fenby.com/course/units/1015#top