1、在vue项目（如果是vue项目）里面的public文件夹下面的index.html中的body里面加入
<script src="https://pv.sohu.com/cityjson?ie=utf-8"></script> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width,initial-scale=1.0"> <link rel="icon" href="<%= BASE_URL %>favicon.ico"> <title>111</title> <style> html, body { margin: 0; padding: 0; width: 100%; height: 100%; box-sizing: border-box; } </style> </head> <body> <noscript> <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong> </noscript> <div id="app"></div> <!-- built files will be auto injected --> <script src="https://pv.sohu.com/cityjson?ie=utf-8"></script> </body> </html>接下来才是重点！！！ vue一般会报returnCitySN未定义，此时在.eslintrc.js中添加以下代码就好
globals:{ 'returnCitySN': true }2、在别的页面直接打印console.log(returnCitySN)
