例子：
#!/usr/bin/python
name='1besdfgb'
name = str('ab sabg fdfg@#')
li = ['l','b','k','x','z','d','z']
intab = 'abcde'
outtab = '12345'
print(name.__contains__('g@'))#
print('g@' in name)#
print(name.capitalize())#
print(name.capitalize().center(20,'*'))#
print(name.count('a',0,3))#
print(name.expandtabs(16))#
print(len(name))#
print(len(name.expandtabs(8)))#
print(name.find('9')) # success 0 error -1
print(name.index('a'))
list_1 = 'liukun {0} as {1}'
print(list_1.format('Kamil','hero'))
print(''.join(li))
print('_'.join(li))
print(name.lower())# xiaoxie
#trantab = maketrans(intab,outtab)
#print(name.translate(trantab,'fg'))
print(name.partition('sa'))#fengge
True
True
Ab sabg fdfg@#
***Ab sabg fdfg@#***
1
ab sabg fdfg@#
14
22
-1
0
liukun Kamil as hero
lbkxzdz
l_b_k_x_z_d_z
ab sabg fdfg@#
('ab ', 'sa', 'bg fdfg@#')