select2-bootstrap4-主题 Bootstrap4的 v4主题(与boostrap 4.0.0+兼容) 现场演示 :backhand_index_pointing_right: 安装 CDN < link rel =" stylesheet " href =" /path/to/select2.css " > < link rel =" stylesheet " href =" https://cdn.jsdelivr.net/npm/@ttskch/select2-bootstrap4-theme@x.x.x/dist/select2-bootstra