refactor: Change break and continue example

lib/basic_part2.dart

@@ -98,8 +98,13 @@ void basic_control_flow() {
   // Break Continue
   count = 0;
   while (count < 5) {
+    if (count == 4) {
+      count += 3;
+      continue;
+    }
+    // continue 會忽略這行，直接進入下一個迴圈
+
     count += 1;
-    if (count == 4) continue;
   }
   print(count);