<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>导出数据</title> <script src="./test.js"></script> </head> <body> <button onclick="exportData()">导出数据</button> </body> </html>