抽象类中子类为什么不能调用父类的非抽象方法？
function DetectorBase() {
throw new Error('Abstract class can not be invoked directly!');
}
DetectorBase.detect = function() {
console.log('Detection starting...');
}
DetectorBase.stop = function() {
console.log('Detection stopped.');
};
DetectorBase.init = function() {
throw new Error('Error');
}
//var d = new DetectorBase();// Uncaught Error: Abstract class can not be invoked directly!
function LinkDetector() {}
LinkDetector.prototype = Object.create(DetectorBase.prototype);
LinkDetector.prototype.constructor = LinkDetector;
var l = new LinkDetector();
console.log(l); //LinkDetector {}__proto__: LinkDetector
l.detect(); //Uncaught TypeError: l.detect is not a function
l.init(); //Uncaught TypeError: l.init is not a function主要是倒数第二行代码。为什么会报错，这里不是应该执行的吗？控制台应该输出 Detection starting... 吗？
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我把老师的代码补全，实例化，调用了一下，为什么没有成功呢？
