Activity for testcase_list

3 years ago · 82ed5d328d
parent 49889a15b8
commit 82ed5d328d
1 changed files with 5 additions and 3 deletions
--- a/rustbyexample/hello/testcase_list.rs
+++ b/rustbyexample/hello/testcase_list.rs
@ -8,9 +8,11 @@ impl fmt::Display for List {

        write!(f, "[")?;

-        for (count, v ) in vec.iter().enumerate() {
-            if count != 0 { write!(f, ", ")?; }
-            write!(f, "{}", v)?;
+        for (count, v) in vec.iter().enumerate() {
+            if count != 0 {
+                write!(f, ", ")?;
+            }
+            write!(f, "{}: {}", count, v)?;
        }

        write!(f, "]")