启动应用的时候,报错如下: DB-Library: SQL Server connection failed. Operating-system error: Bad file number DB-Library: SQL Server connection failed. gOldMacIndex: 1023 gNewMacIndex: 511 gMacALG: 2 Operating-system error: Bad file number DB-Library: SQL Server connection failed. j=0 等待请求...... gOldMacIndex: 1023 gNewMacIndex: 511 gMacALG: 2 Operating-system error: Bad file number DB-Library: SQL Server connection failed. $ Operating-system error: Bad address DB-Library: SQL Server connection failed.