去掉空行 - 润新知

去掉空行

:g/^s*$/d

:g 代表在全文档范围内

^代表行的开始

s*代表空白字符

$代表行的结束

d代表删除
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原文地址：https://www.cnblogs.com/black-mamba/p/5927203.html