mysql - 在QTableView中添加QCombox后，利用setData去修改其中数据后数据不能同步到数据库。

Answer 1

From my immature experience, you can set a breakpoint hereif(value == "男"){
When a girl chooses to be a boy, look at what the value is

But to be honest, I highly doubt that your judgment of QVariant == QString is not very rigorous code.

Hope it helps you