提交demo

store/counter.js

@@ -0,0 +1,17 @@
+import { defineStore } from 'pinia'
+export const useCounterStore = defineStore('counter', {
+  state: () => ({
+    count: 0
+  }),
+  getters: {
+    doubleCount: (state) => state.count * 2
+  },
+  actions: {
+    increment() {
+      this.count++
+    },
+    decrement() {
+      this.count--
+    }
+  }
+})