angular导入JQuery报错jquery_1.default is not a function

ERROR TypeError: jquery_1.default is not a function
    at ActionCategoryDialogComponent.XXX (action-category-dialog.component.ts?4365:60)
    at Object.eval [as handleEvent] (ActionCategoryDialogComponent.html:1)
    at handleEvent (core.js?593e:13582)
    at callWithDebugContext (core.js?593e:15091)
    at Object.debugHandleEvent [as handleEvent] (core.js?593e:14678)
    at dispatchEvent (core.js?593e:9995)
    at eval (core.js?593e:10616)
    at HTMLInputElement.eval (platform-browser.js?384d:2628)
    at ZoneDelegate.invokeTask (zone.js?6524:424)
    at Object.onInvokeTask (core.js?593e:4747)


问题的原因是：
import $ as 'jquery'
修改为：
import * as $ from 'jquery';

完美解决！