bash 局部变量

#!/bin/bash
func()
{
local loc_var=23
echo
echo "\"loca_var\" in function = $loc_var"
global_var=999

echo "\"golbal_var\"in function=$global_var"

}
func
echo "\"loca_var\" in function = $loc_var"

echo "\"golbal_var\"in function=$global_var"
echo
exit