问个关于N-blog中一个问题。

N-blog中取数据是User.get方法，但我改用User.prototype.get就报错了（用User.get是正常的），一下子不懂了。

  Express
500 TypeError: Object function User(user) {
   this.name = user.name;
   this.password = user.password;
   this.email = user.email;
} has no method 'get'
   this.name = user.name;
   this.password = user.password;
   this.email = user.email;
} has no method 'get'
   at /Users/shidoudou/Documents/dev1/node/blog/routes/index.js:33:14
   at callbacks (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/lib/router/index.js:164:37)
   at param (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/lib/router/index.js:138:11)
   at pass (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/lib/router/index.js:145:5)
   at Router._dispatch (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/lib/router/index.js:173:5)
   at Object.router (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/lib/router/index.js:33:10)
   at next (/Users/shidoudou/Documents/dev1/node/blog/node_modules/express/node_modules/connect/lib/proto.js:169:15)
   at /Users/shidoudou/Documents/dev1/node/blog/node_modules/express/node_modules/connect/node_modules/express-session/index.js:314:9
   at /Users/shidoudou/Documents/dev1/node/blog/node_modules/connect-mongo/lib/connect-mongo.js:222:17
   at /Users/shidoudou/Documents/dev1/node/blog/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/collection/query.js:147:5

• 参考N-blog的地址