关于继承
2019-10-27 本文已影响0人
aibinMr
class A{
x=7;
constructor() {
this.y=10;
}
a(){console.log('A')}
}
class B extends A{
z=5;
constructor() {
super();
}
b(){
this.a()
}
c(){
this.b()
}
d=function(){
console.log("D");
}
e(){
console.log(super.y);
}
}
let C=new B();
console.log(C.z)
console.log(C.x)
console.log(C.y)
C.e()
