各种对list，string操作函数的总结

#encoding=utf-8
#reverse，用来反转list
a=['aa','bb','cc']
a.reverse()
print a#['cc', 'bb', 'aa']
#不能直接print a.reverse()，报None
#'tuple','dict','str' object has no attribute 'reverse',不能jiang字符串reverse

#join以指定连接符连接tuple，list，strin，dict,输出为str类型
seq1 = ['hello','good','boy','doiido']
print ':'.join(seq1)#hello:good:boy:doiido
seq2 = ('hello','good','boy','doiido')
print ':'.join(seq2)
seq3 = {'hello':1,'good':2,'boy':3,'doiido':4}
print ':'.join(seq3)#boy:good:doiido:hello输出是乱的
seq4 = 'hello good boy doiido'
print ':'.join(seq4)#h:e:l:l:o: :g:o:o:d: :b:o:y: :d:o:i:i:d:o

#split拆分字符串
a='hello good boy doiido'
print a.split()#['hello', 'good', 'boy', 'doiido']输出是list,括号内是根据什么字符来分割
#'list','tuple','dict' object has no attribute 'split'

#append，insert，remove，pop用法，只能操作list
b=['hello','good','boy','doiido']
b.append('hola')
print b#['hello', 'good', 'boy', 'doiido', 'hola']
b.insert(2,'luck')#['hello', 'good', 'luck', 'boy', 'doiido', 'hola']
print b
b.remove('hola')#['hello', 'good', 'luck', 'boy', 'doiido']
print b
print b.pop()#doiido,str类型
print b#['hello', 'good', 'luck', 'boy']