给模板增加 isDevelop 变量

@@ -25,7 +25,7 @@ app.use(cookieParser());
 app.use(express.static(path.join(__dirname, 'public')));
 
 app.use(function(req, res, next) {
-    res.locals.env = app.get('env');
+    res.locals.isDevelop = app.get('env') === 'development';
     next();
 });
 

@@ -8,7 +8,7 @@ exports.apiError = (err) => {
 
 // 控制返回到页面的错误信息
 exports.webError = (err, res) => {
-    if (res.locals.env === 'development') {
+    if (res.locals.isDevelop) {
         console.log(err);
         err = {};
     }