[Microsoft][ODBC Microsoft Access Driver] 参数不足,期待是 1

真tm坑. QString execStr = QString("SELECT * FROM [Log] WHERE [username]=\"yyy\" "); 查询项用双引号在ACCESS里通过,在其他数据库如SQlite能通过,在代码里就报错[标题], 解决:改为单引号 QString execStr = QString("SELECT * FROM [Log] WHERE [username]='yyy'");