qt 利用QSqlQuery类执行SQL语句

[{"title":"（ 15 个子文件 596KB ） qt 利用QSqlQuery类执行SQL语句","children":[{"title":"qt_csdn_8","children":[{"title":"qt_csdn_8.pro.user <span style='color:#111;'> 20.76KB </span>","children":null,"spread":false},{"title":"release","children":null,"spread":false},{"title":"debug","children":[{"title":"moc_persongroupman.cpp <span style='color:#111;'> 2.15KB </span>","children":null,"spread":false},{"title":"main.o <span style='color:#111;'> 243.64KB </span>","children":null,"spread":false},{"title":"qt_csdn_8.exe <span style='color:#111;'> 1.07MB </span>","children":null,"spread":false},{"title":"persongroupman.o <span style='color:#111;'> 312.01KB </span>","children":null,"spread":false},{"title":"moc_persongroupman.o <span style='color:#111;'> 255.04KB </span>","children":null,"spread":false}],"spread":true},{"title":"main.cpp <span style='color:#111;'> 287B </span>","children":null,"spread":false},{"title":"attend.dat <span style='color:#111;'> 2.00KB </span>","children":null,"spread":false},{"title":"persongroupman.cpp <span style='color:#111;'> 330B </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 7.00KB </span>","children":null,"spread":false},{"title":"qt_csdn_8.pro <span style='color:#111;'> 128B </span>","children":null,"spread":false},{"title":"attend_db.h <span style='color:#111;'> 3.06KB </span>","children":null,"spread":false},{"title":"Makefile.Debug <span style='color:#111;'> 6.32KB </span>","children":null,"spread":false},{"title":"Makefile.Release <span style='color:#111;'> 6.39KB </span>","children":null,"spread":false},{"title":"persongroupman.h <span style='color:#111;'> 276B </span>","children":null,"spread":false}],"spread":false}],"spread":true}]