最简单的方法是在行中添加row-cols-5。点击这里阅读更多

<div class="container">
  <div class="row row-cols-5">
    <div class="col">Col 1</div>
    <div class="col">Col 2</div>
    <div class="col">Col 3</div>
    <div class="col">Col 4</div>
    <div class="col">Col 5</div>
  </div>
</div>

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"> <div class="container"> <div class="row row-cols-5"> <div class="col border bg-primary">Col 1</div> <div class="col border bg-primary">Col 2</div> <div class="col border bg-primary">Col 3</div> <div class="col border bg-primary">Col 4</div> <div class="col border bg-primary">Col 5</div> <div class="col border bg-primary">Col 6</div> <div class="col border bg-primary">Col 7</div> </div> </div>

我对这个问题的首选方法是基于make-grid-columns mixin，利用现有的Bootstrap变量创建一个SASS mixin。

// Custom Grid Columns
// 
// $name - determines the class names: eg. ".col-5ths, .col-sm-5ths ..."
// $size - determines the width (2.4 is one fifth of 12, the default number of columns)
@mixin custom-grid-columns($name, $size, $grid-columns: $grid-columns, $breakpoints: $grid-breakpoints) {
    $columns: round($grid-columns / $size);

    %custom-grid-column {
        @include make-col-ready();
    }

    @each $breakpoint in map-keys($breakpoints) {
        $infix: breakpoint-infix($breakpoint, $breakpoints);

        .col#{$infix}-#{$name} {
            @extend %custom-grid-column;
        }

        @include media-breakpoint-up($breakpoint, $breakpoints) {
            // Create column
            .col#{$infix}-#{$name} {
                @include make-col($size);
            }

            // Create offset
            @if not ($infix=="") {
                .offset#{$infix}-#{$name} {
                    @include make-col-offset($size);
                }
            }
        }
    }
}

然后可以调用mixin来生成自定义列类和偏移量类。

@include custom-grid-columns('5ths', 2.4);

引导4，每行可变列数

如果你想每行最多有5列，这样每一行的列数仍然只占一行的1/5，解决方案是使用Bootstrap 4的mixins:

SCSS:

.col-2-4 {
    @include make-col-ready(); // apply standard column margins, padding, etc.
    @include make-col(2.4); // 12/5 = 2.4
}
.col-sm-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(sm) {
        @include make-col(2.4);
    }
}
.col-md-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(md) {
        @include make-col(2.4);
    }
}
.col-lg-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(lg) {
        @include make-col(2.4);
    }
}
.col-xl-2-4 {
    @include make-col-ready();
    @include media-breakpoint-up(xl) {
        @include make-col(2.4);
    }
}

HTML:

<div class="container">    
  <div class="row">
    <div class="col-12 col-sm-2-4">1 of 5</div>
    <div class="col-12 col-sm-2-4">2 of 5</div>
    <div class="col-12 col-sm-2-4">3 of 5</div>
    <div class="col-12 col-sm-2-4">4 of 5</div>
    <div class="col-12 col-sm-2-4">5 of 5</div>
  </div>
  <div class="row">
    <div class="col-12 col-sm-2-4">1 of 2</div> <!-- same width as column "1 of 5" above -->
    <div class="col-12 col-sm-2-4">2 of 2</div> <!-- same width as column "2 of 5" above -->
  </div>
</div>

如果使用bootstrap 4和SASS (+ bootstrap变量)，您可以使用以下简化的答案:

@each $breakpoint in map-keys($grid-breakpoints) {
  $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

  .col#{$infix}-fifth {
    @extend %grid-column;
  }

  @include media-breakpoint-up($breakpoint, $grid-breakpoints) {
    .col#{$infix}-fifth {
      flex: 0 0 20%;
      max-width: 20%;
    }
  }
}

还支持断点，您可以简单地添加新的.col#{$infix}-xxx类

默认情况下，Bootstrap不提供允许我们创建五列布局的网格系统，您需要按照Bootstrap的方式创建默认列定义 在CSS文件中创建一些自定义类和媒体查询

.col-xs-15,
.col-sm-15,
.col-md-15,
.col-lg-15 {
    position: relative;
    min-height: 1px;
    padding-right: 10px;
    padding-left: 10px;
}
.col-xs-15 {
    width: 20%;
    float: left;
}
@media (min-width: 768px) {
.col-sm-15 {
        width: 20%;
        float: left;
    }
}
@media (min-width: 992px) {
    .col-md-15 {
        width: 20%;
        float: left;
    }
}
@media (min-width: 1200px) {
    .col-lg-15 {
        width: 20%;
        float: left;
    }
}

还有一些HTML代码

<div class="row">
    <div class="col-md-15 col-sm-3">
    ...
    </div>
</div>

不需要编辑CSS的最简单的解决方案是:

<div class="row">
  <div class="btn-group btn-group-justified">
    <div class="btn-group">
      <div class="col-sm-12">Column 1</div>
    </div>
    <div class="btn-group">
      <div class="col-sm-12">Column 2</div>
    </div>
    <div class="btn-group">
      <div class="col-sm-12">Column 3</div>
    </div>
    <div class="btn-group">
      <div class="col-sm-12">Column 4</div>
    </div>
    <div class="btn-group">
      <div class="col-sm-12">Column 5</div>
    </div>
  </div>
</div>

如果你需要这些打破任何断点，只要使btn-group块。希望这能帮助到一些人。