# ionic 按钮 按钮是移动app不可或缺的一部分，不同风格的app，需要的不同按钮的样式。 默认情况下，按钮显示样式为：**display: inline-block**。 ``` <button class="button"> Default </button> <button class="button button-light"> button-light </button> <button class="button button-stable"> button-stable </button> <button class="button button-positive"> button-positive </button> <button class="button button-calm"> button-calm </button> <button class="button button-balanced"> button-balanced </button> <button class="button button-energized"> button-energized </button> <button class="button button-assertive"> button-assertive </button> <button class="button button-royal"> button-royal </button> <button class="button button-dark"> button-dark </button> ``` button-block 样式按钮显示为：**display: block**，它将完全填充父元素的宽度，包含了内边距属性padding。 ``` <button class="button button-block button-positive"> Block Button </button> ``` 使用 button-full 类，可以让按钮显示完全宽度，且不包含内边距padding。 ``` <button class="button button-full button-positive"> Full Width Block Button </button> ``` ## 不同大小的按钮 button-large 设置为大按钮，button-small 设置为小按钮。 ``` <button class="button button-small button-assertive"> Small Button </button> <button class="button button-large button-positive"> Large Button </button> ``` ## 无背景按钮 button-outline 设置背景为透明。 ``` <button class="button button-outline button-positive"> Outlined Button </button> ``` ## 无背景与边框按钮 button-clear 设置按钮背景为透明，且无边框。 ``` <button class="button button-clear button-positive"> Clear Button </button> ``` ## 图标按钮 我们可以在按钮上添加图标。 ``` <button class="button"> <i class="icon ion-loading-c"></i> Loading... </button> <button class="button icon-left ion-home">Home</button> <button class="button icon-left ion-star button-positive">Favorites</button> <a class="button icon-right ion-chevron-right button-calm">Learn More</a> <a class="button icon-left ion-chevron-left button-clear button-dark">Back</a> <button class="button icon ion-gear-a"></button> <a class="button button-icon icon ion-settings"></a> <a class="button button-outline icon-right ion-navicon button-balanced">Reorder</a> ``` ## 头部/底部添加按钮 头部/底部可以添加按钮，按钮的样式根据头部/底部来设定，所以你不需要为按钮添加额外的样式。 ``` <div class="bar bar-header"> <button class="button icon ion-navicon"></button> <h1 class="title">Header Buttons</h1> <button class="button">Edit</button> </div> ``` button-clear 类可以设置无背景和边框的头部/底部按钮。 ``` <div class="bar bar-header"> <button class="button button-icon icon ion-navicon"></button> <div class="h1 title">Header Buttons</div> <button class="button button-clear button-positive">Edit</button> </div> ``` ## 按钮栏 我们可以使用 button-bar 类来设置按钮栏。以下实例中，我们在头部和内容中添加了按钮栏。 ``` <div class="button-bar"> <a class="button">First</a> <a class="button">Second</a> <a class="button">Third</a> </div> ```