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前言

上节,我们学习了

• slot插槽，组件内容的分发处理

本节内容

本小节利用前面学习的组件通信知识，来完成一个仿Element Plus框架的el-button按钮组件实现。
仿造的地址：uhttps://element-plus.org/zh-CN/component/button.html

实现需求

• 按钮类型
• 按钮尺寸
• 按钮文字
• 添加图标

完整代码如下：

<style>.el-button{display: inline-flex;justify-content: center;align-items: center;line-height: 1;height: 32px;white-space: nowrap;cursor: pointer;background-color: #ffffff;border: 1px solid #dcdfe6;border-color: #dcdfe6;;color: #606266;-webkit-appearance: none;text-align: center;box-sizing: border-box;outline: none;transition: .1s;font-weight: 500;user-select: none;vertical-align: middle;padding: 8px 15px;font-size: 14px;border-radius: 4px;}.el-button--primary{color: white;background-color: #409eff; }.el-button--success{color: white;background-color: #67c23a; }.el-button--large{height: 40px;padding: 12px 19px;font-size: 14px;}.el-button--small{height: 24px;padding: 5px 11px;font-size: 12px;border-radius: 3px;}
</style>
<link rel="stylesheet" href="./iconfont/iconfont.css">
<script src="../vue.global.js"></script>
<div id="app"><el-button>default</el-button><el-button type="primary" size="small">Primary</el-button><el-button type="success" size="large">Success</el-button><el-button type="success" size="large"><template #icon><i class="iconfont iconfangdajing"></i></template>Success</el-button></div>
<script>let ElButton = {data(){return {buttonClass: {'el-button': true,[`el-button--${this.type}`]: this.type !== '', [`el-button--${this.size}`]: this.size !== '' }}},props: {type: {type: String,default: ''},size: {type: String,default: ''}},template: `<button :class="buttonClass"><slot name="icon"></slot><slot></slot></button>`};let vm = Vue.createApp({data(){return {}},components: {ElButton}}).mount('#app');
</script>