Vue3文件下载方法实现的简单代码

	window.location.href = `${url}/文件名.xlsx`;

	window.location.href = `${url}/${encodeURI("文件名.xlsx")}`;

	window.location.href = `${url}?flag=1&id=${id}`;

	import Qs from 'qs'
	let params = {
		id:1,
		name:'张三'
	}
	let paramStr = Qs.stringify(params);
	window.location.href = `${url}?${paramStr}`

 	this.$axios.get(${url}/${fileName}`, {
      responseType: "blob",
     }).then((response) => {
       //new Blob([res])中不加data就会返回下图中[objece objece]内容（少取一层）
       const blob = new Blob([response.data]); 
       const elink = document.createElement('a');
       elink.download = '文件名.xlsx';
       elink.style.display = 'none';
       elink.href = URL.createObjectURL(blob);
       document.body.appendChild(elink);
       elink.click();
       URL.revokeObjectURL(elink.href); // 释放URL 对象
       document.body.removeChild(elink);
     }).catch((error) => {
       this.$message({
         message: error
       });
     });