s = '''Python was started in 1989 by "Guido".
Python is free and easy to learn.'''
print s
                Python is free and easy to learn.'''
print s
                    
                    2014-11-29
                
            这题是这样的。第四位随便是提交时提示你59不匹配,这里提示的59是第四位的成绩,正好用倒叙[-1]可以。。我是这样理解的  勿喷。。。
                
                    
                    2014-11-28
                
            左边那儿写错了吧= = 
x = '???' # 用户输入的字符串
if x != 'MON' and x != 'TUE' and x != 'WED' ... and x != 'SUN':
print 'input ok'
else:
print 'input error'
                x = '???' # 用户输入的字符串
if x != 'MON' and x != 'TUE' and x != 'WED' ... and x != 'SUN':
print 'input ok'
else:
print 'input error'
                    
                    2014-11-28
                
            t = ('a', 'b', 'A', 'B')
                
                    
                    2014-11-27
                
            每一个课的任务无法让我们理解与实际应用的关系和意义,与例题等同的任务,成效较低,尤其对于没有编程基础的,不会自行发散的人来讲意义更不大了!
                
                    
                    2014-11-27
                
            s = 'Python was started in 1989 by \"Guido\".\nPython is free and easy to learn.'
print s
                print s
                    
                    2014-11-27
                
            在python中也会有注释有很多行的时候,这种情况下就需要批量多行注释符了。多行注释是用三引号'''   '''包含的
                
                    
                    2014-11-25
                
            文章中的L[1:3],返回值是['Adam', 'Lisa'],这边应该是错的,返回值应该是['Lisa', 'Bart']
                
                    
                    2014-11-25
                
             
             
        












