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<!DOCTYPE html> <html> <body> <h1>JavaScript Class Setter</h1> <p>使用 setter 设置属性值时，请不要使用括号。</p> <p id="demo"></p> <script> class Car { constructor(brand) { this._carname = brand; } set carname(x) { this._carname = x; } get carname() { return this._carname; } } let myCar = new Car("Ford"); myCar.carname = "Volvo"; document.getElementById("demo").innerHTML = myCar.carname; </script> </body> </html>