iview Table使用 slot-scope 编辑模式 添加select下拉框被table遮住
解决方法：
.ivu-table-body{
position: fixed !important;
}
覆盖ivu-table-body定位样式
https://blog.csdn.net/qq_32900003/article/details/99979407?spm=1001.2101.3001.6650.2&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-2-99979407-blog-107979852.pc_relevant_default&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-2-99979407-blog-107979852.pc_relevant_default&utm_relevant_index=3
