npm i --save vtpl-module

const RenderModule = require('vtpl-module');

const renderModule = new RenderModule({
  viewPath: './dist/',
  extension: 'tpl',
  encoding: 'utf-8'
});
class MainModule extends ValleyModule {
  prepare() {
    ...
    this.use('prepareRender', renderModule); // 引入
    ...
    this.use('render', async next => {
      let html = this.context.render(tpl, data, scope);// 调用
      ...
    })
  }
}
let mainModule = new MainModule();