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<!DOCTYPE html> <html> <body> <h2>JavaScript 类 Getter/Setter</h2> <p>在 JavaScript 中使用 getters/setters 时使用下划线字符是常见的做法，但不是强制性的，您可以随意命名它们，但不能与属性名称相同。</p> <p id="demo"></p> <script> class Car { constructor(brand) { this._carname = brand; } get carname() { return this._carname; } set carname(x) { this._carname = x; } } let myCar = new Car("Ford"); document.getElementById("demo").innerHTML = myCar.carname; </script> </body> </html>