zh_order_food_xcx/.env.js

let nodeEnv = process.env.NODE_ENV;
let ENV_CONFIG = null;

if (nodeEnv === 'development') {
    //开发环境
    ENV_CONFIG = require('.env.dev.js');
} else {
    //生产环境
    ENV_CONFIG = require('.env.prod.js');
}
//给环境变量process.uniEnv赋值
if (ENV_CONFIG !== null) {
    process.uniEnv = {};
    for (let key in ENV_CONFIG) {
        process.uniEnv[key] = ENV_CONFIG[key];
    }
}