原因：This module is declared with using ‘export =‘, and can only be used with a default import when using the ‘esModuleInterop‘ flag.
解决：
import request = require(‘request‘); // 别用from
typescript报错“can only be default-imported using the 'esModuleInterop' flag
原文：https://www.cnblogs.com/xym4869/p/13294798.html