处理监听图表的函数，确保及时移除&生产环境不打印log

babel.config.js

@@ -1,8 +1,16 @@
+const plugins = [];
+
+// 生产环境移除 console.log/debug/info，保留 error/warn
+if (process.env.NODE_ENV === 'production') {
+  plugins.push(['transform-remove-console', { exclude: ['error', 'warn'] }]);
+}
+
 module.exports = {
   presets: [
     // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
     '@vue/cli-plugin-babel/preset'
   ],
+  plugins: plugins,
   'env': {
     'development': {
       // babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().