https://dtm.pub/guide/why.html

``` ([0-9a-z]+)\s+([0-9a-z]+)\s=\s([0-9]+);([^/]+)(.*)\n $2 $1 $5\n

@doc "发布二手商品"
@handler PublishUsed
post PublishUsed(PublishUsedReq) returns(UsedResp);
@doc "取消二手商品寄售"

将post首字母小写

post ([A-Za-z]{1}) post \L$1