1e41f4b71Sopenharmony_ci# toolbar 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci> **说明：** 4e41f4b71Sopenharmony_ci> 从API version 5开始支持。后续版本如有新增内容，则采用上角标单独标记该内容的起始版本。 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci工具栏。放在界面底部，用于展示针对当前界面的操作选项。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci## 权限列表 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ci无 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci## 子组件 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci支持<toolbar-item>子组件。 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci> **说明：** 19e41f4b71Sopenharmony_ci> 工具栏最多可以展示5个toolbar-item子组件，如果存在6个及以上toolbar-item子组件，则保留前面4个子组件，后续的子组件收纳到工具栏上的更多项中，通过点击更多项弹窗展示剩下的子组件，更多项展示的组件样式采用系统默认样式，toolbar-item上设置的自定义样式不生效。 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci## 属性 23e41f4b71Sopenharmony_ci 24e41f4b71Sopenharmony_ci支持[通用属性](js-components-common-attributes.md)。 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ci## 样式 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci支持[通用样式](js-components-common-styles.md)。 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci> **说明：** 32e41f4b71Sopenharmony_ci> 不支持height样式，高度固定为56px。 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci## 事件 36e41f4b71Sopenharmony_ci 37e41f4b71Sopenharmony_ci不支持。 38e41f4b71Sopenharmony_ci 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ci## 方法 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci不支持。 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci## 示例 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci详见[toolbar-item示例](js-components-basic-toolbar-item.md)。 48