Go (a) variable

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

Package Mainimport ("FMT") Func main () {varAinta=1    varA1stringA1="my is A1"B:=2B1:="My is B1"FMT. Println (A,"^^^^", A1) Fmt. Println (b,"^^^^", B1)}

[' Go run Test.go ' | done:208.870174ms]
1 ^^ ^^ my is A1
2 ^^ ^^ My is B1

The next piece is interesting, with a python list of shadows, but the go language is called a "byte array"

Package Mainimport (    "fmt") Func main () {    A:'my is b"    B:= []byte(a)    FMT. Println (string(b[0))}

[' Go run Test.go ' | done:190.573207ms]
M

Package Mainimport (    "fmt") Func main () {    A:'my is b" +        "  test"    B:= ' My        name           is '    fmt. Println (a)    FMT. Println (b)}

[' Go run Test.go ' | done:197.232301ms]
My is B test
My
Name
Is

var is the one that declares global variables and assigns values.

The definition of a const constant,

Type declaration of a generic type

Package Mainimport (    "fmt") Func main () {    var  (         " Wang " Age)fmt.       Print ("hello""Age was:", Age)}

[' Go run Hello.go ' | done:201.697722ms]
Hellowangage Is:12

Type lingzhii:

When a variable is declared as a default value after some type,

Typically, the value type is 0

BOOL is False

String is empty

Package Mainimport (    "fmt") Func main () {    varint     varstring    varbool    FMT. Println (a)    FMT. Println (b)    FMT. Println (c)}

[' Go run Test1.go ' | done:215.061592ms]
0

False