06_go language foundation

 
 // more than 06 variables or constants defined 

package main

import (

	"fmt"

)

func main() {

	// define different types of variables 

	var a int

	where b float64 

	a, b = 10, 4.2

	fmt.Println("a=", a)

	fmt.Println("b=", b)

	// declare variables of different types (definitions) 

	// var A Int   

	// var b float64

	// the variable definition must be used 

	// was (  

	// 	c int

	// 	d float64

	// )

	// c = 90

	// fmt.Println("c=", c)

	// d = 100.1

	// fmt.Println("d=", d)

	// here automatically deduce the type of variables can not write: No. 

	was ( 

		c = 67

		d = 44

	)

	fmt.Println("c=", c)

	fmt.Println("d=", d)

	// defined constants 

	// After constant defines the back may not be used 

	// const (

	// i int = 100 	   

	// j int = 50 	   

	// )

	// can also be used to derive automatic type 

	const (

		i = 100

		j = 50

	)

	fmt.Println(j)

}