vi - 如何在vi中交换奇数行和偶数行？

Question

假设我有这样的代码:

__device__ ​ float __cosf (float x);
//Calculate the fast approximate cosine of the input argument.
__device__ ​ float __exp10f (float x);
//Calculate the fast approximate base 10 exponential of the input argument.
__device__ ​ float __expf (float x);
//Calculate the fast approximate base e exponential of the input argument.
__device__ ​ float __fadd_rd (float x, float y);
//Add two floating point values in round-down mode.
__device__ ​ float __fadd_rn (float x, float y);
//Add two floating point values in round-to-nearest-even mode.
__device__ ​ float __fadd_ru (float x, float y);
//Add two floating point values in round-up mode.

我如何在 vi 中交换奇数行和偶数行？

Answer 1

你可以定义一个键来交换 2 行: :map <F2> ddp<Down>

似乎没有太多行，所以按几次'F2'会交换行...