将zh.txt转换为Unicode编码，输出文件到u.txt

native2ascii zh.txt u.txt

将zh.txt转换为ISO8859-1编码，输出文件到i.txt

native2ascii -encoding ISO8859-1 zh.txt i.txt

将u.txt转换为本地编码，输出到文件u_nv.txt

native2ascii -reverse u.txt u_nv.txt