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Title: 3.Variables.go
Author: OpenSource
Date: 2017-05-20
Description: For Study
In Go, variables are explicitly declared and used by the compiler to e.g.
check type-correctness of function calls.
package main
import "fmt"
func main(){
var a string = "initial"
//var declares 1 or more variables.
fmt.Println("var a sring = \"initial\"= ",a)
var b, c int = 1, 2
//You can declare multiple variables at once.
fmt.Println("var b, c int = 1, 2 =",b,c)
var d = true
//Go will infer the type of initialized variables.
fmt.Println("var d = true = ",d)
var e int
//Variables declared without a corresponding initialization are zero-valued.
// For example, the zero value for an int is 0.
fmt.Println("var e int = ",e)
f := "shortu"
//The := syntax is shorthand for declaring and initializing a variable,
//e.g. for var f string = "short" in this case.
fmt.Println("f := \"short\"", f)
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