text: ﻿//export var firstName = 'Michael';
  //export var lastName = 'Jackson';
  //export var year = 1958;
  
  
  var firstName = 'Michael';
  var lastName = 'Jackson';
  var year = 1958;
  
  // 输出三个变量
  export {firstName, lastName, year};
  
  
  // 输出一个函数multiply
  export function multiply(x, y) {
      return x * y;
  };
  
  
  // 使用as关键字重命名
  function v1() { 
  }
  function v2() { 
  }
  
  //export {
  //  v1 as streamV1,
  //  v2 as streamV2,
  //  v2 as streamLatestVersion
  //};
  
  export { v1 as streamV1, v2 as streamV2, v2 as streamLatestVersion}
  
  