ystem-random">随机生成</button>
                                        </span>
                    </div>
                        <div class="uk-form-help">系统内部加密密钥,根据需要更改设置</div>
                    </div>
                </div>
                <div class="uk-form-group">
                    <label class=" uk-form-label">会话前缀</label>
                    <div class="uk-form-controls">
                        <input class="uk-input" type="text" name="cookie_pre" v