光标移动到第一行行首，按住ALT+SHIFT 如下图：
参考链接:https://blog.csdn.net/sgdd123/article/details/80701262?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-18.no_search_link&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromBaidu%7Edefault-18.no_search_link
