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The code is as follows. When the page is just loaded, the p where ng-show is located will pop up for a moment. How to avoid it?
<label class="col-sm-2 control-label">username</label>

            <p class="col-sm-10">
                <input type="text" autocomplete="off" name="username" ng-model="data.username" ng-minlength="5" ng-maxlength="10" ng-required="true" class="form-control"  placeholder="請(qǐng)輸入用戶名">
                <p ng-show="myform.username.$error.minlength" class="alert alert-danger help-block">
                    用戶名不能小于5位
                </p>
                <p ng-show="myform.username.$error.maxlength" class="alert alert-danger help-block">
                    用戶名不能大于10位
                </p>
            </p>