diff --git a/NodeSample/models/article.js b/NodeSample/models/article.js
index 7280f81..a4a61d5 100644
--- a/NodeSample/models/article.js
+++ b/NodeSample/models/article.js
@@ -1,24 +1,31 @@
-var util = require('util');
 var mongoose = require('mongoose');
 var Schema = mongoose.Schema;
 //定义article type实体对象模型
 var articleTypeScheme = new Schema({
-    articleType:String
-    ,describe:String
-    ,logoSrc:String
+    articleType: String,
+    describe: String,
+    logoSrc: String
     //,create_date: { type: Date, default: Date.now }
 });
 //定义article details对象模型
 var articleDetailScheme = new Schema({
-    title:String
-    ,summary:String
-    ,content:String
-    ,create_date: { type: Date, default: Date.now }
-    ,refArticleId:{ type: Schema.Types.ObjectId, ref: 'articleType' }
+    title: String,
+    summary: String,
+    content: String,
+    create_date: {
+        type: Date,
+        default: Date.now
+    },
+    refArticleId: {
+        type: Schema.Types.ObjectId,
+        ref: 'articleType'
+    }
 
 });
 mongoose.model('articleType', articleTypeScheme);
 mongoose.model('articleDetail', articleDetailScheme);
-module.exports.Schema =function (modelName){
-    return{model:mongoose.model(modelName)};
-}
+module.exports.Schema = function (modelName) {
+    return {
+        model: mongoose.model(modelName)
+    };
+}
\ No newline at end of file
diff --git a/NodeSample/models/todo.js b/NodeSample/models/todo.js
index 7a4f08c..577fa98 100644
--- a/NodeSample/models/todo.js
+++ b/NodeSample/models/todo.js
@@ -5,21 +5,31 @@
  * Time: 下午3:00
  * To change this template use File | Settings | File Templates.
  */
-var util = require('util');
 var mongoose = require('mongoose');
 var Schema = mongoose.Schema;
 //定义article type实体对象模型
 var todoTypeScheme = new Schema({
-        taskType:String,
-         status:String,
-       title:String,
-        project:String,
-        startDate: { type: Date, default: Date.now },
-         endDate: { type: Date, default: Date.now },
-        priority:{type:int,default:0}
+  taskType: String,
+  status: String,
+  title: String,
+  project: String,
+  startDate: {
+    type: Date,
+    default: Date.now
+  },
+  endDate: {
+    type: Date,
+    default: Date.now
+  },
+  priority: {
+    type: int,
+    default: 0
+  }
 
 });
 mongoose.model('todoManager', todoTypeScheme);
-module.exports.Schema =function (modelName){
-    return{model:mongoose.model(modelName)};
-}
+module.exports.Schema = function (modelName) {
+  return {
+    model: mongoose.model(modelName)
+  };
+}
\ No newline at end of file
diff --git a/NodeSample/models/user.js b/NodeSample/models/user.js
index 08c148a..8bbc391 100644
--- a/NodeSample/models/user.js
+++ b/NodeSample/models/user.js
@@ -1,14 +1,18 @@
-var util = require('util');
 var mongoose = require('mongoose');
 var Schema = mongoose.Schema;
 var userSchema = new Schema({
-    userName:String,
-    password:String,
-    email:String,
-    create_date: { type: Date, default: Date.now }
+    userName: String,
+    password: String,
+    email: String,
+    create_date: {
+        type: Date,
+        default: Date.now
+    }
 });
 //访问todo对象模型
 mongoose.model('user', userSchema);
-module.exports.Schema =function (modelName){
-    return{model:mongoose.model(modelName)};
-}
+module.exports.Schema = function (modelName) {
+    return {
+        model: mongoose.model(modelName)
+    };
+}
\ No newline at end of file