feat: 环境搭建

bf/stores/counter.js

@@ -0,0 +1,12 @@
+import { ref, computed } from "vue";
+import { defineStore } from "pinia";
+
+export const useCounterStore = defineStore("counter", () => {
+  const count = ref(0);
+  const doubleCount = computed(() => count.value * 2);
+  function increment() {
+    count.value++;
+  }
+
+  return { count, doubleCount, increment };
+});