#当前路径 $PWD
echo "current_path:"$PWD
#父级路径 $(dirname $PWD)
echo "parent_path:"$(dirname $PWD)
#套娃即可 $(dirname $(dirname $PWD))
echo "parent_parent_path:"$(dirname $(dirname $PWD))
export LD_LIBRARY_PATH=$PWD
echo "LD_LIBRARY_PATH:"$LD_LIBRARY_PATH
./app