如何自定义QTreeWidget头的字体

Using:

使用:

tree=QtGui.QTreeWidget()
tree.setHeaderLabels(['Column 1','Column 2','Column 3'])
tree.setColumnWidth(0, 48)  
tree.setColumnWidth(1, 48)  
tree.setColumnWidth(2, 48)  
tree=QtGui.QTreeWidget()
tree.se