(0,0)处,并设置高,宽均为一个单元
button = gtk_button_new_with_label("Button1");
g_signal_connect(button ,...(1,0)处,并设置高,宽均为一个单元
button = gtk_button_new_with_label("Button2");
g_signal_connect(button ,...(0,1)处,并设置高为一个单元,宽为两个单元
button = gtk_button_new_with_label("Exit");
g_signal_connect_swapped(...(1,1)处,并设置高为一个单元,宽为两个单元
button = gtk_button_new_with_label("Exit");
g_signal_connect_swapped(...gtk_grid_attach(GTK_GRID(grid) , button , 0 , 0 , 1 , 1);
该函数后面四个参数依次代表:第几行,第几列,横向跨度,纵向跨度。