export default {};
/* function testDecorator(constructor: any) {
constructor.prototype.uname = "张予曦";
constructor.prototype.show = ():void => {
console.log(`我是`);
}
}
@testDecorator
class Person {
}
let p = new Person();
(p as any).show(); */
// 工厂函数
/* function testDecorator(flag: boolean) {
if(flag) {
return function (constructor: any) {
constructor.prototype.uname = "张予曦";
constructor.prototype.show = (): void => {
console.log(`我是`);
};
};
}else {
return function(constructor: any) {}
}
}
@testDecorator(true)
class Person {}
let p = new Person();
// (p as any).show(); */
// T 就相当于一个类
// 函数可以接收很多的参数,参数的类型都是any类型,最后把这些都放在了数组中
/* function testDecorator<T extends new(...args: any[]) => {}>(constructor: T) {
// 直接对 constructor 进行扩展
return class extends constructor {
name = "章若楠";
age = 18;
show() {
console.log(, "xxxxxxxxxxxxxxxxxxxx");
}
}
}
@testDecorator
class Person {
name: string;
constructor(name: string) {
= name
}
}
let p = new Person("陈意涵");
console.log(p);
(p as any).show() */
// 工厂函数
function testDecorator() {
return function <T extends new (...args: any[]) => {}>(constructor: T) {
return class extends constructor {
name = "章若楠";
age = 18;
show() {
console.log(, "xxxxxxxxxxxxxxxxxxxx");
}
};
};
}
const Person = testDecorator()(class {
name: string;
constructor(name: string) {
= name
}
})
// class Person {
// name: string;
// constructor(name: string) {
// = name;
// }
// }
let p = new Person("陈意涵");
console.log();
p.show()