QMessageBox

inline static int question(QWidget *parent, const QString &title, const QString& text, StandardButton button0, StandardButton button1)

enum Icon {    NoIcon = 0,    Information = 1,    Warning = 2,    Critical = 3,    Question = 4};

enum StandardButton {// keep this in sync with QDialogButtonBox::StandardButton    NoButton           = 0x00000000,    Ok                 = 0x00000400,    Save               = 0x00000800,    SaveAll            = 0x00001000,    Open               = 0x00002000,    Yes                = 0x00004000,    YesToAll           = 0x00008000,    No                 = 0x00010000,    NoToAll            = 0x00020000,    Abort              = 0x00040000,    Retry              = 0x00080000,    Ignore             = 0x00100000,    Close              = 0x00200000,    Cancel             = 0x00400000,    Discard            = 0x00800000,    Help               = 0x01000000,    Apply              = 0x02000000,    Reset              = 0x04000000,    RestoreDefaults    = 0x08000000,    FirstButton        = Ok,                // internal    LastButton         = RestoreDefaults,   // internal    YesAll             = YesToAll,          // obsolete    NoAll              = NoToAll,           // obsolete    Default            = 0x00000100,        // obsolete    Escape             = 0x00000200,        // obsolete    FlagMask           = 0x00000300,        // obsolete    ButtonMask         = ~FlagMask          // obsolete};

QMessageBox::information(this, tr("information"), tr("这是information"), QMessageBox::Ok | QMessageBox::No);

QMessageBox::warning(this, tr("warning"), tr("这是warning"));

QMessageBox::critical(this, tr("critical"), tr("这是critical"));

QMessageBox::question(this, tr("question"), tr("这是question"));