用col-sm-6添加类“nopadding”…这将解决您的问题。
<div class="section">
<div class="container-fluid">
<div class="row">
<div class="col-sm-6 nopadding"><div class="embed-responsive embed-responsive-16by9">
<img class="embed-responsive-item" width="600px" height="360" src="images\lenovok5.jpg"/> </div>
</div>
<div class="col-sm-6 nopadding">
<div class="embed-responsive embed-responsive-16by9"><iframe width="560" height="315" class="embed-responsive-item" src="https://www.youtube.com/embed/_9G7CGbk4SA"></iframe>
</div>
</div>
</div>
</div>
</div>
CSS文件添加以下代码:
.nopadding {
padding: 0 !important;
margin: 0 !important;
}