new Vue().$mount('#app')
<div id="app"> <el-row> <el-button>默认按钮</el-button> <el-button size="medium">中等按钮</el-button> <el-button size="small">小型按钮</el-button> <el-button size="mini">超小按钮</el-button> </el-row> <el-row> <el-button round>默认按钮</el-button> <el-button size="medium" round>中等按钮</el-button> <el-button size="small" round>小型按钮</el-button> <el-button size="mini" round>超小按钮</el-button> </el-row> </div>