题解 | #格式化输出#
格式化输出
https://www.nowcoder.com/practice/d91a06bfaff443928065e611b14a0e95
#!/bin/bash
awk 'BEGIN{FS=""}{fg1=NF%3
if(NF<4)
{print $0}
else
{for(i=1;i<=NF;i++)
{if(i%3==fg1&&i!=NF)
{printf "%s,",$i}
else
{printf "%s",$i}}
print ""}}' nowcoder
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