Initial data commit

Task/Character-codes/Go/character-codes-3.go

@@ -0,0 +1,21 @@
+package main
+
+import "fmt"
+
+func main() {
+	// yes, there is more concise syntax, but this makes
+	// the data types very clear.
+	var b byte = 'a'
+	var r rune = 'π'
+	var s string = "aπ"
+
+	fmt.Println(b, r, s)
+	fmt.Println("string cast to []rune:", []rune(s))
+	// A range loop over a string gives runes, not bytes
+	fmt.Print("    string range loop: ")
+	for _, c := range s {
+		fmt.Print(c, " ") // c is type rune
+	}
+	// We can also print the bytes of a string without an explicit loop
+	fmt.Printf("\n         string bytes: % #x\n", s)
+}