后端代码

import api
import upload
import timesave_dir = "uploads"async def rand_content(request):key = api.req.get_query(request, "key")time.sleep(0.3)return api.resp.success(f"{key} " * 100)app = api.Api(routes=[api.resp.get("/", rand_content),upload.download("/download/{filename}", save_dir),],middleware=[api.middleware.cors()]
)if __name__ == "__main__":app.run()

前端代码

<template><a-card :loading="loading" title="Card title">{{ message }}</a-card><a-button style="margin-top: 16px" @click="handleClick">Load data</a-button>
</template>
<script setup>
import {ref} from 'vue';
import axios from "axios";const loading = ref(false);
const message = ref("random data")const handleClick = () => {loading.value = true;axios.get(`http://localhost:8888/?key=hello world`).then(resp => {message.value = resp.data.dataloading.value = false})
};
</script>

效果预览

加载前：

加载中：

加载后：