loadNumber: function (event) {
        var el = event.currentTarget;
        var elValue = el.value;
        var reg = /^((?!0)\d{1,2}|100)$/;
        if (!elValue.match(reg)) {
            elValue = "";
            console.log("b")
            return false;
        } else {
            return true;
        }

    }

我做的是用正则判断后重新赋值，问题出在不能重新赋值

  <input v-model="UploadInfoModel.ER" @keyup="loadNumber($event)" />