1 """ 2 This script illustrate the usage of escape symbol %%. In general, it is used in mutil-formatted string. when a string is 3 formatted , %% can escape a % so that just one remains for the final formatting operation at the end. 4 """ 5 a='%s%%s'%'yjs' 6 print(a) # print a as '%syjw' 7 b=a%'jjj' # format variable a again 8 print(b) # print b as 'jjjyjw' 9 #****************** 10 a='%%s%s'%'yjw' 11 print(a) 12 b=a%'jjj' 13 print(b)