zsh: 支持匿名函数参数。

    function my-cd-rotate() {
        () {
            builtin emulate -L zsh
            while (( $#dirstack )) && ! builtin pushd -q $1 &>/dev/null; do
                builtin popd -q $1
            done
            (( $#dirstack ))
        } "$@" && reset-prompt
    }