s="xxx%d yyy%sn" % (28,'jeapedu')
file_obj.write(s)
fd=open('format.txt','w')
head='s s s n' % ('ID','Name','Record')
fd.write(head)
item1='d s .2f' % (9510442,'Jeapedu1',78.96)
fd.write(item1)
item2='d s .2f' % (9510443,'Jeapedu2',88.96)
fd.write(item2)
item3='d s .2f' % (9510444,'Jeapedu3',94.56)
fd.write(item3)
...
...
fd.close()
