我有这样的文字:
This is a normal line.
6 spaces are before me. //line 1
4 spaces are before me. //line 2
3 spaces are before me. //line 3
6 spaces are before me. //line 4
4 spaces are before me. //line 5
Another normal line.
2 spaces are before me. But that is ok. //line 7
Line goes on.
如何使用 vim 选择并删除第 1 行到第 5 行之前的所有空格?