先在shell中 gvim *.txt再

:silent! argdo! set fileencoding=utf-8 | update

但是反过来都转cp936，可能就不行。

在未删奇数行的前提下批量替换偶数行的内容。

execute "normal G"
let total_line=line(".")
"get the last line number
execute "normal gg"
        for a in range(total_line/2)
        normal j
        "s/、/，/ge
        s/みっちゃん/小美/ge
        s/みっちゃん/小美/ge
        s/美絵ちゃん/小美绘/ge
        s/美絵/美绘/ge
        s/\(.*\)」/\1/ge
        s/\(「.*\)/\1」/ge
        "first delete the last 」 if there exists one, then add 」 at the end if there is         a 「 at first.
        "this is OK for most lines except those like this
        "「XXXXX
        "XXXXX
        "XXXXXX」
        
        normal j
endfor
"back to the 1st line and replace even lines(which contain chinese)