eCharts解决无法访问本地文件的方法

前端写eCharts-map遇到无法访问本地文件问题：
Access to XMLHttpRequest at ‘file:///E:/ARCGIS%20JS/firstProject/demo/json/china.json’ from origin ‘null’ has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome-extension, edge, chrome-untrusted, https, isolated-app.
解决方法：
1.在vs code中下载live Server插件。
2.然后右击open with live Server