图标glyphicon未显示在bootstrap4角中

Question

我是angular的初学者，我想显示glyphicon-search glyphicon图标，但我不能，我正在使用angular5 bootstrap 4

<span class="glyphicon glyphicon-search"></span>
<h1>fffff</h1>
<button type="button" class="btn btn-primary">Primary</button>

<button type="button" class="btn btn-default" aria-label="Left Align">
  <span class="glyphicon glyphicon-align-left" aria-hidden="true"></span>
</button>

Answer 1

您是否已检查是否已安装Bootstrap 4或标头中包含软件包