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基础案例 ​

flex-direction : row


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flex-direction : column


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order 

感觉可以用 order 来动态实现排序( 从小到大 )

article

flex-wrap

默认情况下，项目都排在一条线（又称"轴线"）上。flex-wrap属性定义，如果一条轴线排满，如何换行。

flex-wrap:nowrap

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flex-wrap:wrap

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flex-wrap:reverse

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flex-direction

flex-direction属性决定主轴的方向（即项目的排列方向）。

flex-direction:row

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flex-direction:row-reverse

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flex-direction:column

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flex-direction:column-reverse

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flex-flow

flex-flow属性是flex-direction属性和flex-wrap属性的简写形式，默认值为row nowrap。

flex

flex属性定义项目的放大比例，默认为0，即如果存在剩余空间，也不放大。

test

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​

代码实现
基础案例.vue
vue
<script setup >
import { ref } from "vue"
</script>

<template>
    <h3>flex-direction : row</h3>
    <br>
    <div class="base-flex-1">
        <div class="row">3</div>
        <div class="row">3</div>
        <div class="row">3</div>
        <div class="row">3</div>
    </div>
    <h3>flex-direction : column</h3>
    <br>
    <div class="base-flex-2">
        <div class="col">3</div>
        <div class="col">3</div>
    </div>

    <h3> order </h3>
    <pre>感觉可以用 order 来动态实现排序( 从小到大 ) </pre>
    <br>
    <div class="base-flex-3">
        <article>article</article>
        <nav>nav</nav>
        <aside>aside</aside>
    </div>

    <h3>flex-wrap</h3>
    <pre>默认情况下，项目都排在一条线（又称"轴线"）上。flex-wrap属性定义，如果一条轴线排满，如何换行。</pre>
    <br>
    <!--  -->
    <h4>flex-wrap:nowrap</h4>
    <div class="base-flex-nowrap">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
        <div class="row">6</div>
    </div>

    <h4>flex-wrap:wrap</h4>
    <div class="base-flex-wrap">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
        <div class="row">6</div>
    </div>

    <h4>flex-wrap:reverse</h4>
    <div class="base-flex-wrap-reverse">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
        <div class="row">6</div>
    </div>

    <h4>flex-direction</h4>
    <pre>flex-direction属性决定主轴的方向（即项目的排列方向）。</pre>
    <br>
    <!--  -->
    <h4>flex-direction:row</h4>
    <div class="base-flex-1">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
        <div class="row">6</div>
    </div>

    <h4>flex-direction:row-reverse</h4>
    <div class="base-flex-row-reverse base-flex-1">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
        <div class="row">6</div>
    </div>

    <h4>flex-direction:column</h4>
    <div class="base-flex-column base-flex-1">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
    </div>

    <h4>flex-direction:column-reverse</h4>
    <div class="base-flex-column-reverse base-flex-1">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
    </div>

    <h4>flex-flow</h4>
    <pre>flex-flow属性是flex-direction属性和flex-wrap属性的简写形式，默认值为row nowrap。</pre>

    <h4>flex</h4>
    <pre>flex属性定义项目的放大比例，默认为0，即如果存在剩余空间，也不放大。</pre>


    <h4>test</h4>
    <div class="base-flex-1 test">
        <div class="row">1</div>
        <div class="row">2</div>
        <div class="row">3</div>
        <div class="row">4</div>
        <div class="row">5</div>
    </div>
</template>

<style scoped lang="scss">
.base-flex-1 {
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;

    .row {
        width: 100px;
        height: 100px;
        background-color: #ccc;
        margin: 10px;
        border-radius: 10px;
        box-sizing: border-box;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.base-flex-2 {
    display: flex;
    flex-direction: column;

    .col {
        width: 100px;
        height: 100px;
        background-color: #ccc;
        margin: auto;
        border-radius: 10px;
        box-sizing: border-box;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;

        &:last-child {
            margin-top: 10px;
        }
    }
}

.base-flex-3 {
    display: flex;
    width: 100%;
    height: 120px;
    color: #000;
    border-radius: .5em;
    border: 1px solid #ccc;
    padding: .5em;

    article {
        flex: 1;
        order: 2;
        background-color: aqua;
    }

    nav {
        width: 200px;
        order: 1;
        background-color: #fff;
    }

    aside {
        width: 200px;
        order: 3;
        background-color: blueviolet;
    }

    * {
        display: flex;
        justify-content: center;
        align-items: center;
    }
}

.base-flex-nowrap {
    flex-wrap: nowrap;
    display: flex;
    width: 100%;
    height: 120px;
    color: #000;
    border-radius: .5em;
    border: 1px solid #ccc;
    padding: .5em;

    .row {
        width: 500px;
        height: 100px;
        background-color: #ccc;
        margin: auto;
        border-radius: 10px;
        box-sizing: border-box;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.base-flex-wrap {
    margin-top: 1em;
    flex-wrap: wrap;
    display: flex;
    width: 100%;
    color: #000;
    border-radius: .5em;
    border: 1px solid #ccc;
    // padding: .5em;
    padding-bottom: 1em;

    .row {
        width: 200px;
        height: 100px;
        background-color: #ccc;
        margin: auto;
        border-radius: 10px;
        box-sizing: border-box;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-top: 1em;
    }
}

.base-flex-wrap-reverse {
    margin-top: 1em;
    flex-wrap: wrap-reverse;
    display: flex;
    width: 100%;
    color: #000;
    border-radius: .5em;
    border: 1px solid #ccc;
    // padding: .5em;
    padding-bottom: 1em;

    .row {
        width: 200px;
        height: 100px;
        background-color: #ccc;
        margin: auto;
        border-radius: 10px;
        box-sizing: border-box;
        text-align: center;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-top: 1em;
    }
}


.base-flex-row-reverse {
    flex-direction: row-reverse;
}

.base-flex-column {
    flex-direction: column;

    .row {
        width: 40px;
        height: 40px;
    }
}

.base-flex-column-reverse {
    flex-direction: column-reverse;

    .row {
        width: 40px;
        height: 40px;
    }
}

.test {
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    // margin: auto;
    align-content: space-evenly;
    height: 260px;
    border: 1px solid black;
    border-radius: 12px;

    .row {
        border: 1px solid black;
        width: 200px;
        margin: 0;
        align-self: center;
        margin-left: 22px;
    }
}
</style>
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