if elif else 使用，elifelse,1 #!/usr/bin

if elif else 使用，elifelse,1 #!/usr/bin

1 #!/usr/bin/env python  2 while True:  3   4     score=int(raw_input('please input your score(0-100): '))  5     if score >=90 and score <=100:  6         print 'your are A type'  7     elif 80<=score<=89:  8         print 'you are B type'  9     elif 70<=score<=79: 10         print 'you are C type' 11     elif 60<=score<=69: 12         print 'you are D type' 13     elif 0<=score<60: 14         print 'you are F type' 15     else: 16         print 'you are input a wrong score.'