pygtk和glade，如何将字符串加入一个combox

使用glade创建的combox, 其对应的liststore不能绑定到python的string类型， 所以需要在程序中手工写代码来创建combox对应的liststore. pygtk faq有个很好的例子，细节可以参考：

For glade users, you can create a simple model for your ComboBox* using

  store = gtk.ListStore(gobject.TYPE_STRING)
  store.append (["testing1"])
  store.append (["testing2"])
  store.append (["testing3"])
  store.append (["testing4"])

For a ComboBoxEntry, it's then a matter of assigning the model to the combo and specifying the text column:

  combo = tree.get_widget("comboboxentry1")
  combo.set_model(store)
  combo.set_text_column(0)

For a ComboBox, pack a renderer into it, specifying the text cell:

  combo = tree.get_widget("combobox1")
  combo.set_model(store)
  cell = gtk.CellRendererText()
  combo.pack_start(cell, True)
  combo.add_attribute(cell, 'text',0)