on phase: 彌合差距：Numocity 的 Roaming Hub 如何加速電動車的普及
: Uncaught mysqli_sql_exception: Too many connections in /var/www/hoodb/function.php:268
Stack trace:
#0 /var/www/hoodb/function.php(268): mysqli_connect()
#1 /var/www/hoodb/function.php(274): db()
#2 /var/www/hoodb/function.php(290): select()
#3 /var/www/hoodb/function.php(108): daCache()
#4 /var/www/hoodb/redirect.php(241): showNav()
#5 /var/www/hoodb/route.php(53): include_once('...')
#6 /var/www/hoodb/route.php(20): go()
#7 {main}
thrown in