一，上固定，下自适应

1，代码

<div class="all">  <div class="top">111</div>  <div class="center">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .top {    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

  .center {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }
</style>

2，图例

image.png

二，下固定，上自适应

1，代码

<div class="all">  <div class="top">111</div>  <div class="center">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .top {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .center {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }
</style>

2，图例

image.png

三，上下固定，中间自适应

1，代码

<div class="all">  <div class="top">111</div>  <div class="center">222</div>  <div class="bottom">333</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .top {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

  .center {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .bottom{
    width: 100%;
    height: 100px;
    background-color: #13ce66;
  }

</style>

2，图例

image.png

四，左固定，右自适应

1，代码

1.1，float布局

<div class="all">  <div class="left">111</div>  <div class="right">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
  }

  .left {
    width: 320px;
    height: 100%;    float: left;
    background: #409EFF;
  }

  .right {
    width: 100%;
    height: 100%;
    background: #008489;
  }
</style>

1.2，flex布局

<div class="all">  <div class="left">111</div>  <div class="right">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;    display: flex;
  }

  .left {
    width: 320px;
    height: 100%;    flex:none;
    background: #409EFF;
  }

  .right {
    width: 100%;
    height: 100%;
    flex:1;
    background: #008489;
  }
</style>

1.3，table布局

<div class="all">  <div class="left">111</div>  <div class="right">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: table;
  }

  .left {
    width: 320px;
    height: 100%;
    display:table-cell;
    background: #409EFF;
  }

  .right {
    height: 100%;
    display:table-cell;
    background: #008489;
  }
</style>

1.4，calc布局

<div class="all">  <div class="left">111</div>  <div class="right">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: table;
  }

  .left {
    width: 320px;
    height: 100%;
    float:left;
    background: #409EFF;
  }

  .right {
    height: 100%;
    float:right;
    width:calc(100% - 320px);
    background: #008489;
  }
</style>

1.5，margin-left布局

<div class="all">  <div class="left">111</div>  <div class="right">222</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: table;
  }

  .left {
    width: 320px;
    height: 100%;
    float:left;
    background: #409EFF;
  }

  .right {
    height: 100%;
    width:auto;
    margin-left:320px;
    background: #008489;
  }
</style>

2，图例

image.png

五，综合

1，仿网站布局1

先左固定，右自适应；再上下固定，中自适应

<div class="all">
    <div class="left">111</div>
    <div class="right">
        <div class="right-top">222</div>
        <div class="right-center">333</div>
        <div class="right-bottom">444</div>
    </div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
  }

  .left {
    width: 320px;
    height: 100%;
    float: left;
    background: #409EFF;
  }

  .right {
    height: 100%;
    width: auto;
    margin-left: 320px;
    background: #008489;

    display: flex;
    flex-direction: column;
  }

  .right-top {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

  .right-center {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .right-bottom {
    width: 100%;
    height: 100px;
    background-color: #13ce66;
  }
</style>

image.png

2，仿网站布局2

先上固定，下自适应；再左固定，右自适应

<div class="all">
    <div class="top">111</div>
    <div class="center">
        <div class="left">222</div>
        <div class="right">333</div>
    </div>
    <div class="bottom">444</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .top {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

  .center {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .bottom {
    width: 100%;
    height: 100px;
    background-color: #13ce66;
  }

  .left {
    width: 320px;
    height: 100%;
    float: left;
    background: #409EFF;
  }

  .right {
    height: 100%;
    width: auto;
    margin-left: 320px;
    background: #008489;
  }
</style>

如图所示

image.png

3，仿XShell页面布局

先上固定，下自适应；再左固定，右自适应；最后左上自适应，左下固定

<div class="all">
    <div class="top">111</div>
    <div class="center">
        <div class="left">
            <div class="left-top">222</div>
            <div class="left-bottom">333</div>
        </div>
        <div class="right">444</div>
    </div>
    <div class="bottom">555</div>
</div>

<style>
  .all {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .top {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

  .center {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .bottom {
    width: 100%;
    height: 100px;
    background-color: #13ce66;
  }

  .left {
    width: 320px;
    height: 100%;
    float: left;
    background: #409EFF;

    display: flex;
    flex-direction: column;
  }

  .right {
    height: 100%;
    width: auto;
    margin-left: 320px;
    background: #008489;
  }

  .left-top {
    width: 100%;
    flex: 1;
    background-color: #1c84c6;
  }

  .left-bottom {
    width: 100%;
    height: 100px;
    background-color: #1ab394;
  }

</style>

image.png