vue 记录一个 自适应高度 ，可拖拽宽度的页面

<template>
  <div>
      <div id="box"  :style="{height:divHeight+'px'}">
        <div id="left">
            1111111111
        </div>
        <div id="resize"></div>
        <div id="right" >
            22222222222
        </div>
      </div>
  </div>
</template>

<script>
export default {
    data(){
        return{
            screenWidth: window.innerWidth,
            screenHeight: window.innerHeight,
            divHeight: window.innerHeight - 110,
        }
    },
    created(){this.divHeight = window.innerHeight - 110;
    },
    mounted() {
        this.dragControllerDiv();
        this.screenWidth = document.body.clientWidth;
        this.screenHeight = document.body.clientHeight;
        window.onresize = () => {
            return (() => {
                this.screenWidth = document.body.clientWidth;
                this.screenHeight = document.body.clientHeight;
            })();
        };
    },
    methods:{
        dragControllerDiv() {
            let resize = document.getElementById("resize");
            let left = document.getElementById("left");
            let right = document.getElementById("right");
            let box = document.getElementById("box");

            resize.onmousedown = function (e) {
                let startX = e.clientX;
                resize.left = resize.offsetLeft;
                document.onmousemove = function (e) {
                    let endX = e.clientX;
                    let moveLen = resize.left + (endX - startX);
                    let maxT = box.clientWidth - resize.offsetWidth;
                    if (moveLen < 100) moveLen = 100;
                    //   if (moveLen > maxT - 800) moveLen = maxT - 800
                    resize.style.left = moveLen;
                    left.style.width = moveLen + "px";
                    right.style.width = box.clientWidth - moveLen - 5 + "px";
                };
                document.onmouseup = function () {
                    document.onmousemove = null;
                    document.onmouseup = null;
                    resize.releaseCapture && resize.releaseCapture();
                };
                resize.setCapture && resize.setCapture();
                return false;
            };
        },
    }
}
</script>

<style scoped>
.bigbox {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
#box {
    flex: 1;
    width: 100%;
    height: 500px;
    position: relative;
    display: flex;
}

#left {
    width: calc(20% - 5px);
    height: 100%;
    overflow: auto;
    border:1px solid red;
}

#resize {
    position: relative;
    width: 5px;
    height: 100%;
    cursor: w-resize;
}

#right {
    width: 80%;
    height: 100%;
    overflow: hidden;
}
.flex {
    display: flex;
    margin-bottom: 10px;
    align-items: center;
}

</style>


<style lang='scss' scoped></style>