利用sortablejs实现拖拽排序

import Sortable from "sortablejs";

created() {
	//禁止火狐拖拽进行搜索
    document.body.ondrop = function(event){
        event.preventDefault();
        event.stopPropagation();
    }

}

// 打开对话框的时候调用下
 openCustomDialog(){
     this.rowDrop()
 }

// 行拖拽
rowDrop() {
    this.$nextTick(() => {
        this.sortable1 = Sortable.create(
            document.querySelector(".form_table .el-table__body-wrapper tbody"),
            {
                handle: ".drag-btn",
                onEnd: ({ newIndex, oldIndex }) => {
                    this.tableData.splice(
                        newIndex,
                        0,
                        this.tableData.splice(oldIndex, 1)[0]
                    );
                    var newArray = this.tableData.slice(0);
                    this.tableData = [];
                    this.$nextTick(function () {
                        this.tableData = newArray;
                    });
                },
            }
        );
    });
},

      <el-dialog
          title="自定义"
          :visible.sync="customDialogVisible"
          v-if="customDialogVisible"
          :append-to-body="true"
          width="20%"
      >
          <el-table
              :data="tableData"
              class="form_table"
              border
              fit
              highlight-current-row>
              <el-table-column
                  prop="sort"
                  label="拖拽更换顺序"
                 align="center">
                  <i class=" el-icon-sort drag-btn"></i>
              </el-table-column>
              <el-table-column
                  prop="desc"
                  label="图片类型"
              align="center">
              </el-table-column>
          </el-table>

          <div class="btns">
              <el-button @click="cancelCustomDialog">取消</el-button>
              <el-button type="primary" @click="confirmCustomDialog" :loading="loading">确定</el-button>
          </div>
      </el-dialog>

<style scoped>
//悬停出现鼠标
.drag-btn{
    cursor: pointer;
}
</style>

注意：drag-btn 这个可以修改，但是上下要对应上