Qt连接数据库（或服务器数据库）增删改查

[{"title":"（ 6 个子文件 6KB ） Qt连接数据库（或服务器数据库）增删改查","children":[{"title":"b","children":[{"title":"mainwindow.cpp <span style='color:#111;'> 2.92KB </span>","children":null,"spread":false},{"title":"b.pro <span style='color:#111;'> 1.01KB </span>","children":null,"spread":false},{"title":"mainwindow.h <span style='color:#111;'> 647B </span>","children":null,"spread":false},{"title":"main.cpp <span style='color:#111;'> 183B </span>","children":null,"spread":false},{"title":"b.pro.user <span style='color:#111;'> 40.65KB </span>","children":null,"spread":false},{"title":"mainwindow.ui <span style='color:#111;'> 3.58KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]