Initial commit - learning the basics

tour_of_go/l2/functions.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"fmt"
+	"math/cmplx"
+)
+
+var c, java, python bool
+var n, m int = 1, 2
+var (
+	ToBe	bool		= false
+	MaxInt	uint64		= 1<<64 - 1
+	z		complex128	= cmplx.Sqrt(-5 + 12i)
+)
+
+func add(x, y int) int {
+	return x + y
+}
+
+func swap (x, y string) (string, string) {
+	return y, x
+}
+
+func split(sum int) (x, y int) {
+	x = sum * 4 / 9
+	y = sum - x
+	return
+}
+
+func main() {
+	fmt.Println(add(42,13))
+	x := [3]int{2,1,1}
+	fmt.Println(x)
+
+	a, b := swap("hello", "go")
+	fmt.Println(a, b)
+
+	fmt.Println(split(17))
+
+	var i int
+	fmt.Println(i, c, python, java)
+
+	c, java, python := true, true, "no!"
+	k := 3
+	fmt.Println(k, n, m, c, python, java)
+
+	fmt.Printf("Type: %T Value: %v\n", ToBe, ToBe)
+	fmt.Printf("Type: %T Value: %v\n", MaxInt, MaxInt)
+	fmt.Printf("Type: %T Value: %v\n", z, z)
+
+	g := 42
+	f := float64(g)
+	u := uint(f)
+	fmt.Println(g, f, u)
+
+	const Pi = 3.14
+	const World = "世界"
+	const Truth = true
+
+	fmt.Println("Hello", World)
+	fmt.Println("Happy", Pi, "Day")
+	fmt.Println("Go rules?", Truth)
+}
+

tour_of_go/l2/packages.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"math"
+)
+
+func main() {
+	fmt.Println("My favorite number is", rand.Intn(10))
+	fmt.Println(math.Pi)
+}