masonry显示隐藏

//如果是1

    if ([model.teacherIdentity isEqualToString:@"1"])
    {
        _familyEducationLabel.hidden = NO;
        
        [_familyEducationLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.width.equalTo(@30);
        }];
    }else
    {
         _familyEducationLabel.hidden = YES;
        
        [_familyEducationLabel mas_remakeConstraints:^(MASConstraintMaker *make) {
            make.width.equalTo(@0);
        }];
        
    }

if ([_model.teacherIdentity isEqualToString:@"1"])
        {
            [_familyEducationLabel mas_updateConstraints:^(MASConstraintMaker *make) {
                 make.width.equalTo(@30);
            }];
        }
        else
        {
            [_familyEducationLabel mas_updateConstraints:^(MASConstraintMaker *make) {
                make.width.equalTo(@0);
            }];
        }

注意一下update和remake