添加构建命令可实现开发环境切换线上数据 review by 黄敬囿

+const NODE_ENV = process.env.NODE_ENV;
 module.exports = {
   env: {
-    NODE_ENV: '"development"'
+    NODE_ENV: NODE_ENV ? NODE_ENV: '"development"'
   },
   defineConstants: {
   },

+const NODE_ENV = process.env.NODE_ENV;
 module.exports = {
   env: {
-    NODE_ENV: '"production"'
+    NODE_ENV: NODE_ENV ? NODE_ENV: '"production"'
   },
   defineConstants: {
   },

@@ -6,8 +6,11 @@
 	"main": "index.js",
 	"scripts": {
 		"build:weapp": "taro build --type weapp",
+		"build:dev-weapp": "taro build --type weapp --env development",
+		"build:pro-weapp": "taro build --type weapp --env production",
 		"build:h5": "taro build --type h5",
 		"dev:weapp": "npm run build:weapp -- --watch",
+		"dev:pro-weapp": "npm run build:pro-weapp -- --watch",
 		"dev:h5": "npm run build:h5 -- --watch",
 		"test": "echo \"Error: no test specified\" && exit 1"
 	},

@@ -71,7 +71,7 @@ class App extends Component {
 				iconPath: './static/images/tab-icon-02.png',
 				selectedIconPath: './static/images/tab-icon-02-focus.png'
 			}, {
-          pagePath: 'pages/message/message/message',
+        pagePath: 'pages/message/message/message',
 				text: '消息',
 				iconPath: './static/images/tab-icon-03.png',
 				selectedIconPath: './static/images/tab-icon-03-focus.png'