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28 lines
536 B
28 lines
536 B
// 可见修饰符：protected 表示受保护的，仅对声明所在类和子类中（非实例对象）可见
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// 父类
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class Animal {
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// move 方法是受保护的
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protected move() {
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console.log('123')
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}
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run() {
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console.log('789')
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}
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}
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const a = new Animal()
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// 实例对象不能访问 move 方法
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// a.move()
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// 子类
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class Dog extends Animal {
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bark() {
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console.log('456')
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}
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}
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const d = new Dog()
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// 子类的实例对象也不能访问 move 方法
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// d.move()
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