Angular学习个人遇见的问题分享

个人遇见的一些问题
写完app-heros遇见的报错

Failed to compile.src/app/app.component.html:2:1 - error NG8001: &＃39;heroes&＃39; is not a known element:
1. If &＃39;heroes&＃39; is an Angular component, then verify that it is part of this module.
2. To allow any element add &＃39;NO_ERRORS_SCHEMA&＃39; to the &＃39;&＃64;NgModule.schemas&＃39; of this component.2 <heroes></heroes>~~~~~~~~src/app/app.component.ts:5:165 templateUrl: &＃39;./app.component.html&＃39;,~~~~~~~~~~~~~~~~~~~~~~Error occurs in the template of component AppComponent.


查了半天是一个很简单的位置书写错误


对比一下粗心大意了

angular报错信息之 Can’t bind to ‘ngForOf’ since it isn’t a known property of ‘tr’.
这个就是缺少了一个angulaer模块

import { CommonModule }from&＃39;&＃64;angular/common&＃39;;


在module.ts引入一下问题就解决了

蚂蚁金服的坑

所有东西配置完之后你发现前面的单选框还是不出现&＃xff0c;那是因为官方的例子没写全
缺少一个显示控件&＃xff0c;一辈子也显示不出来啊 nzShowCheckbox