初始版本提交

src/components/CountDown/index.ts

@@ -0,0 +1,6 @@
+import { withInstall } from '/@/utils';
+import countButton from './src/CountButton.vue';
+import countdownInput from './src/CountdownInput.vue';
+
+export const CountdownInput = withInstall(countdownInput);
+export const CountButton = withInstall(countButton);