JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3Rbrlongdesc_zh=编辑/etc/mailcap 文件，该文件将MIME类型映射到处理程序 desc_zh=MIME类型程序