第一个GO程序

package main

import (
    "fmt"
    "runtime"
    "strconv"
)

func this_is_func() {
    var a float32 = 8
    var b float32 = 20
    var c float32 = b + a
    var d float32 = b - a
    var e float32 = a * b
    var f float32 = a / b
    var m int = 8
    var n int = 3
    var g int = m % n
    fmt.Printf("c=%f\n", c)
    fmt.Println(d)
    fmt.Println(e)
    fmt.Println(f)
    fmt.Println(g)

}

func rel() {
    var a float32 = 8
    var b float32 = 3
    var c float32 = 5
    fmt.Println(!(a > b && b > c)) // True

}

func ops_print() {
    fmt.Printf("This OS Orch: %s, Int Size: %d \n", runtime.GOARCH, strconv.IntSize) //This OS Orch: amd64, Int Size: 64
    fmt.Printf("260 ==> %b", 260)                                                    // 260 ==> 100000100  对应的二进制
}

func main() {
    this_is_func()
    rel()
    ops_print()
}