Go language closures, anonymous functions, variable use

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

< Strong>package   main  import   " FMT "     func   main  () {i: = 10                  closure1: =   func   () { Fmt. printf  ( "closure, I:%d\n"   i)//output: i = 15//Key: Here I is a reference to the periphery I, which is the feature of the Golang closure, not a snapshot but a reference, so the modification is to directly change the value of peripheral I,    

< Span style= "White-space:pre" > //So the output I value in Main is: +  

     Less rigorous, but easy to understand: the equivalent of pointers and references in C + +, pointing to the same piece of memory, and plainly sharing I instead of duplicating I.         }       closure1 ()       FMT.  Printf("in Main, I:%d\n"i)//output: +       funcint) {              fmt.  Printf("function call, pass parameter, I:%d\n"x)       }              Closure2 (i)//output: 15, This is a call to a value. }

Reference: http://www.goinggo.net/2014/06/pitfalls-with-closures-in-go.html

Note: This article is only my personal notes, if there are errors and omissions, please correct me, study together, my e-mail: htyu_0203_39@sina.com