我设法通过使用Vue组件创建的钩子解决了这个问题。

import { useAuthStore } from "@src/stores/auth";
import { Meta, Story } from "@storybook/vue3";
import MocNav from "./MocNav.vue";

const auth = useAuthStore();

export default {
  title: "components/MocNav",
  components: { MocNav },
} as Meta;

const Template: Story = (args) => ({
  components: { MocNav },
  setup() {
    return { args };
  },
  template: "<MocNav v-bind='args' />",
  created() {
    if (args.authenticated) {
      auth.login(...);
    } else {
      auth.logout();
    }
  },
});

export const Default = Template.bind({});
Default.args = {
  authenticated: true,
};

用户现在可以使用Storybook表单控件更改身份验证存储状态。