版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/sweet_o/article/details/88869833
1、换行
File—Settings—Editor—General—Use soft wraps in editor
2、显示行号
File—Settings—Editor—General—Appearance—Show line numbers
3、全局搜索（Ctrl+shift+f）
Edit—Find—Find in Path
