0_go language foundation

 
 // 07 Enumeration 

package main

import (

	"fmt"

)

func main() {

	// 1.iota constant generated automatically, each row automatically accumulate 1 

	// 2.iota assigned to the constant use 

	const (

		a = iota // 0

		b = iota // 1

		c = iota // 2

	)

	fmt.Printf("a = %d,b = %d,c = %d\n", a, b, c)

	// 3.iota encountered const, will be reset to 0 

	const d = iota

	fmt.Printf("d = Î%d\n", d)

	// 4. You can write only one iota, effects same as above 

	const (

		a1 = iota // 0

		b1

		c1

	)

	fmt.Printf("a1 = %d,b1 = %d,c1 = %d\n", a1, b1, c1)

	// 5. If the same line, the values are the same 

	const( 

		i          = iota

		J1 , j2 , J3 = the IOTA , the IOTA , the IOTA // same row are 1     

		k          = iota

	)

	fmt.Printf("i=%d,j1=%d,j2=%d,j3=%d,k=%d\n", i, j1, j2, j3, k)

}