renumber again

018-returns/returns.go

@@ -0,0 +1,23 @@
+// ## Multiple Return Values
+
+// In Go, a function can return multiple values.
+// This feature is used often, for example to
+// return a result and an error from a function.
+
+package main
+
+import "fmt"
+
+// The `(int, int)` in this signature shows that the
+// function returns 2 ints.
+func vals() (int, int) {  
+    return 3, 7           
+    
+}
+
+func main() {
+    // Use the 2 different return values from the call.
+    x, y := vals()        
+    fmt.Println(x)
+    fmt.Println(y)
+}

018-returns/returns.sh

@@ -0,0 +1,3 @@
+$ go run returns.go
+3
+7