简单工厂模式

主要用来创建同一类对象

1##

var Name = function(content) {
  this.content = content;
}
Name.prototype = {
  default: function() {
    return "请输入名称";
  },
  success: function() {
    return "格式正确";
  },
  error: function() {
    return "输入错误";
  }
}

var Password = function(content) {
  this.content = content;
}
Password.prototype = {
  default: function() {
    return "请输入密码";
  },
  success: function() {
    return "密码格式正确";
  },
  error: function() {
    return "输入错误";
  }
}

var Login = function(name) {
  seitch(name) {
    case: 'name':
      return new Name();
    case: 'password':
      return new Password();
  }
}

2##

function Login(type, content) {
  var o = new Object();
  o.content = content;
  o.default = function() {
    return content[0];
  }
  o.success = function() {
    return content[1];
  }
  o.error = function() {
    return content[2];
  }

  if (type == 'name') {
    
  }
  if (type == 'password') {

  }

  return o;
}

var userName = Login('name', ["请输入至少4位字母、汉字","格式正确","输入格式错误，请重新输入"]);