more index work

024-struct-fields/struct-fields.go

@@ -0,0 +1,17 @@
+// ## Struct Fields
+
+package main
+
+import "fmt"
+
+type Circle struct {
+	x, y, r int
+}
+
+func main() {
+	c := Circle{x: 1, y: 2, r: 5}
+	fmt.Println(c.x, c.y, c.r)
+	c.x = 10
+	c.y = 5
+	fmt.Println(c.x, c.y, c.r)
+}