Golang standard input and output

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The standard output in Golang is simple:

Package Mainimport ("FMT") func main () {FMT. Println ("Hello World");}

Standard input, I tried a lot of times do not:

Package Mainimport ("FMT") func main () {var str stringfmt. Scanln (str) FMT. Printf ("INPUT:%s\n", str);}

It was found that the correct one was to add & before str.:

Package Mainimport ("FMT") func main () {var str stringfmt. Scanln (&STR) fmt. Printf ("INPUT:%s\n", str);}

Keep a small note and prevent forgetting