我有如下数据
1k 1m 12 1m 1k
2k 7m 9 12m 37k
.........
希望转成：
1024 1048576 12 1048576 1024
2048 7340032 9   12582912  37888

我想把每个数据都转换成byte字节，然后输出，请问怎么做？

just parse each string, pickup the "k" or "m", if it's "k", multiply by 1024.
if it's "m", multiply by 1024*1024