function Employee(name) {
  this.name = name;
  this.say = function () {
    console.log("I am employee " + name);
  };
}
function EmployeeFactory() {
  this.create = function (name) {
    return new Employee(name);
  };
}
function Vendor(name) {
  this.name = name;
  this.say = function () {
    console.log("I am vendor " + name);
  };
}
function VendorFactory() {
  this.create = function (name) {
    return new Vendor(name);
  };
}
function run() {
  var persons = [];
  var employeeFactory = new EmployeeFactory();
  var vendorFactory = new VendorFactory();
  persons.push(employeeFactory.create("Joan DiSilva"));
  persons.push(employeeFactory.create("Tim O'Neill"));
  persons.push(vendorFactory.create("Gerald Watson"));
  persons.push(vendorFactory.create("Nicole McNight"));
  for (var i = 0, len = persons.length; i < len; i++) {
    persons[i].say();
  }
}

;(function (global) {
    "use strict";

    var MyPlugin = function (name) {
        this.name = name
    };

    MyPlugin.prototype = {
        say: function () {
            console.log('欢迎你：', this.name)
        },
        random: function (min = 0, max = 1) {
            if (min <= Number.MAX_SAFE_INTEGER && max <= Number.MAX_SAFE_INTEGER) {
                return Math.floor(Math.random() * (max - min + 1)) + min
            }
        }
    };
    
    // 函数自执行将 this（全局下为window）传入，并在其下面挂载方法
    global.MyPlugin = MyPlugin;
    // 兼容CommonJs规范导出
    if (typeof module !== 'undefined' && module.exports) module.exports = MyPlugin; 
})(this);