typedi依赖注入框架

https://www.npmjs.com/package/typedi

import { Container } from 'typedi';
class ExampleClass {
  print() {
    console.log('I am alive!');
  }
}
/** Request an instance of ExampleClass from TypeDI. */
const classInstance = Container.get(ExampleClass);
/** We received an instance of ExampleClass and ready to work with it. */
classInstance.print();