Fatal error: Uncaught mysqli_sql_exception: 由于目标计算机积极拒绝，无法连接。 in C:\web\ipostalcode\es\demo_county.php:67 Stack trace: #0 C:\web\ipostalcode\es\demo_county.php(67): mysqli_connect('127.0.0.1', 'root', Object(SensitiveParameterValue), 'postcode') #1 C:\web\ipostalcode\es\index.php(60): include('C:\\web\\ipostalc...') #2 {main} thrown in C:\web\ipostalcode\es\demo_county.php on line 67