el-input 視圖不刷新或者視圖刷尋之后值沒有更新

背景：

el-table表格循環的數據，本次發貨數量不能大於剩余數量，如果大於剩余數量就默認變為剩余數量

HTML代碼：

　　　　　　<el-table-column prop="skuDeliveryNum" align="center" label="本次發貨數量" min-width="110">

                            <template slot-scope="scope">

                                <el-input maxlength="50" v-model="scope.row.skuDeliveryNum" placeholder="請輸入" :max="scope.row.skuLeftNum"

                                    @blur="changeNun(scope.row)"

                                    @input="scope.row.skuDeliveryNum = scope.row.skuDeliveryNum.replace(/[^0-9]/g, '');">  

                                </el-input>

                            </template>

                        </el-table-column>

@input="scope.row.skuDeliveryNum = scope.row.skuDeliveryNum.replace(/[^0-9]/g, '');">   不允許輸入數字以外的字符

//發貨數量判斷

            changeNun(num) {

                if (event.target.value > num.skuLeftNum) {

                    this.$nextTick(()=>{

                        num.skuDeliveryNum = num.skuLeftNum

                    })

                    this.$message.error('發貨數量不能大於剩余數量');

                } else if (event.target.value == '' || event.target.value == null) {

                    this.$nextTick(()=>{

                        num.skuDeliveryNum = 1

                    })

                }

            },

 

  this.$nextTick(()=>{  })      //用這個方法去刷新視圖和數據