在调用AppComponent.ts之前,Angular 2的起点是什么?

我想在角度2的应用程序的起点做些事情,但我无法得到这一点。 如果有人知道这件事,请帮助我。

提前致谢。


Index.html是开始,它连续main.ts ,然后它与<my-app>一起继续并继续

在Index.html之后,加载systemjs.config.js 。 它告诉哪个文件运行。 在systemjs.config.js ,它告诉加载main.ts以开始。

当没有文件名和/或没有扩展名时,软件包会告诉系统加载程序如何加载

经过一番研究,看看下面的systemjs.config.js文件。 评论说明它的作用和时间。

/**
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    paths: {
      // paths serve as alias
      'npm:': 'node_modules/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',
      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      // other libraries
      'rxjs':                      'npm:rxjs',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
      //For android Internet
      'moment': 'npm:moment',
      'jquery':'npm:jquery/dist/jquery.js',
      'fullcalendar':'npm:fullcalendar/dist/fullcalendar.js'
    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.js',
        defaultExtension: 'js'
      },
      rxjs: {
        defaultExtension: 'js'
      },
      moment: { main: './moment.js', defaultExtension: 'js' } 
    }
  });
})(this);
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