------------title-------------
content1                                             content2

origin : test-str
string[::-1] : rts-tset

origin:   test   

lstrip:test   
blank position:4
blank position:5
blank position:6

rstrip:   test
blank position:0
blank position:1
blank position:2

strip:test

origin : 我是中文
after encode : b'\xe6\x88\x91\xe6\x98\xaf\xe4\xb8\xad\xe6\x96\x87'
after decode : 我是中文
True
0000012345
True
True
('Hello', '-', 'World-nick')
('Hello-World', '-', 'nick')
['Hello', 'World']
hELLO wORLD
H5llo,5v5ryon5.l 1m ni3k
