//写法1
export var foo=function(){
  console.log(1);
}
//写法2
var bar ={a:"1",b:2};
export {bar};
//写法3
var baz='hello world';
export {baz as qux};

"use strict";
//标记这个模块是es的模块
Object.defineProperty(exports, "__esModule", {
  value: true
});
//写法1
var foo = exports.foo = function foo() {
  console.log(1);
};
//写法2
var bar = { a: "1", b: 2 };
exports.bar = bar;
//写法3

var baz = 'hello world';
exports.qux = baz;

import {foo,qux} from './xx';
console.log(qux);

'use strict';
var _ = require('./xx');
console.log(_.qux);

import * as xx from './xx';
console.log(xx.bar);

'use strict';
var _ = require('./xx');
var xx = _interopRequireWildcard(_);
function _interopRequireWildcard(obj) {
  //判断是node模块还是es模块
  if (obj && obj.__esModule) {
    return obj;
  }
  else {
    var newObj = {};
    if (obj != null) {
      for (var key in obj) { 
        if (Object.prototype.hasOwnProperty.call(obj, key)) 
         newObj[key] = obj[key];
      }
    }
  //兼容旧的babel编译
    newObj.default = obj;
    console.log(newObj);
    return newObj;
  }
}
console.log(xx.bar);

import oo from './xx'
console.log(oo.bar);

'use strict';
var _ = require('./xx');
var _2 = _interopRequireDefault(_);
function _interopRequireDefault(obj) { 
 return obj && obj.__esModule ? obj : 
 { default: obj }; 
}
console.log(_2.default.bar);

var foo=123;
export default foo;

"use strict";
Object.defineProperty(exports, "__esModule", {
 value: true
});
var foo = 123;
exports.default = foo;

export default 123;

export default {foo:123};

export default function f(){}

export default function (){}

export default var foo=123; //错误

export * from './xx';

'use strict';
Object.defineProperty(exports, "__esModule", {
 value: true
});
var _ = require('./xx');
Object.keys(_).forEach(function (key) {
 if (key === "default" || key === "__esModule") return;
 Object.defineProperty(exports, key, {
  enumerable: true,
  get: function get() {
   return _[key];
  }
 });
});

if (key === "default" || key === "__esModule") return;

export {default} from './xx';

import * as o from './oo'; //oo是个文件

//index.js
export * from './1';
export * from './2';