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使用QT5.3.0，里面已经有QPSQL数据库插件了，我也在环境变量里面写入了QPSQL的LINCLUDE LIB bin 文件路劲，也把libpq.dll复制到了我debug目录下，但是放我运行的的时候，还是提示 QSqlDatabase:QPSQL driver not loaded QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL 7 请教呀
把插件DLL也拷贝到你的DEBUG目录下试试？