first commit

exercises/08_enums/enums1.rs

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+#[derive(Debug)]
+enum Message {
+    // TODO: Define a few types of messages as used below.
+}
+
+fn main() {
+    println!("{:?}", Message::Resize);
+    println!("{:?}", Message::Move);
+    println!("{:?}", Message::Echo);
+    println!("{:?}", Message::ChangeColor);
+    println!("{:?}", Message::Quit);
+}