You have to turn off the graphics hot keys that flip the screen. If you're on Windows, you need to right click on the Windows desktop and select "Graphics Properties..." (or something similar depending on your version of Windows). This will bring up a screen where you can manage graphics and display options, look for a place where you can disable hot keys, sometimes it's hidden under something like "Options and Support". Turn off the CTRL + ALT + ↑ and CTRL + ALT + ↓ hotkeys (alternatively you can just disable all graphics hot keys if you're not using them).

这是另一种方法:

1) Alt+Up and Alt+Down (or Alt+Down and Alt+Up, order does not matter)
2) Ctrl+C

当然vim的“yy”是最快的:)

You have to turn off the graphics hot keys that flip the screen. If you're on Windows, you need to right click on the Windows desktop and select "Graphics Properties..." (or something similar depending on your version of Windows). This will bring up a screen where you can manage graphics and display options, look for a place where you can disable hot keys, sometimes it's hidden under something like "Options and Support". Turn off the CTRL + ALT + ↑ and CTRL + ALT + ↓ hotkeys (alternatively you can just disable all graphics hot keys if you're not using them).

在我的Mac上，默认设置是ALT+CMD+Down

您可以通过Eclipse -> Preferences(快捷键CMD+)和General -> Keys来更改/查看所有键绑定

如果有人使用Mac电脑，CTRL + ALT + DOWN键不起作用。

试试，

alt+命令+下

它的工作原理。

按Ctrl-D会删除一行 Ctrl-Z将取消删除，高亮显示整行 按Ctrl-X/C剪切或复制整行

与按Ctrl-Alt-Down再按Ctrl-X相比，其他用户建议的优点是它不会使eclipse认为文件以任何方式被更改。它也更快，即使用户使用Ctrl-Alt-Down/Up快捷键旋转屏幕也不会出现任何问题。因此，不需要为此重新映射捷径。

另一种方法是按Alt-Shift-Up，直到整条线都被选中。如果你走得太远，当然你可以用Alt-Shift-Down选择更少。