ES6 Object() 构造函数
ES6 Object() 构造函数
var myCar = new Object()
var propertyName = "make";
myCar[propertyName] = "Ford";
console.log(myCar.make)
var myCar = new Object()
var propertyName = "make";
myCar[propertyName] = "Ford";
console.log(myCar.make)