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tryjs_class_method2
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<!DOCTYPE html> <html> <body> <h2>JavaScript 类方法</h2> <p>将参数传递给“age()”方法。</p> <p id="demo"></p> <script> class Car { constructor(name, year) { this.name = name; this.year = year; } age(x) { return x - this.year; } } let date = new Date(); let year = date.getFullYear(); let myCar = new Car("Ford", 2014); document.getElementById("demo").innerHTML= "My car is " + myCar.age(year) + " years old."; </script> </body> </html>