A string of Python data types (ii)

Continue with 1.isdecimal,isgigit,isnumeric above: whether the current input is a number

1 "  A "

1 v1 = test.isdecimal ()2 v2 = test.isdigit ()3 v3 = test.isnumeric () C10>4Print(v1, v2)

Results:

True True

2.isidentifier: Determine if the identifier is

1 Import keyword 2 Print (Keyword.iskeyword ("def")) 3 " def " 4 v = test.isidentifier ()5print(v)

Results:

Truetrue

3.isprintable: Whether there are non-visible characters

1 # \ t  tab 2#  \ n  line break 3"ddfer\thuyb"  4 v = test.isprintable ()5print(v)

Results:

False

4.isspace: Determine if all spaces are blank

1 " " 2 v = test.isspace ()3print(v)

Results:

True

5.istitle: Determine if the title is

1 " ADSJDJKSDSKD JDFKSDSLKDJ " 2 v1 = test.istitle ()3print(v1)4 v = test.title () 5 Print (v) 6 v2 = test.istitle ()7print(v2)

Results:

FALSEADSJDJKSDSKD Jdfksdslkdjfalse

6.join: Stitching each element in a string according to a specified delimiter

1 " you are the wind, I am the sand " 2 Print (test) 3 ' ' 4 v = t.join (test)5'_'. Join (Test) 6 Print (v) 7 Print (v1)

Results:

You are the wind son I am the sand you are the wind son I am the sand You _ is _ the Wind _ son _ i _ is _ sha

7.ljust,rjust,zfill: Specifying a size padding character for a string

 1  test =  " feng   " 2  v = test.ljust (20, " *  "  )   3  v1 = test.rjust (20, " *   " )  4  v2 = Test.zfill (20 5  print   (v)  6  print   (v1  7  print  (v2) 

Results:

feng********************************Feng0000000000000000feng

8.islower,lower,isupper,upper: Determine if all capitalization and conversion are case-sensitive

1 " Feng " 2 v1 = test.islower ()3 v2 = test.lower ()4print(V1,V2)  5 v3 = test.isupper ()6 v4 = test.upper ()7Print (V3,V4)

Results:

False Fengfalse FENG

9.lstrip,rstrip,strip: Remove left and right blank, \t,\n

1 "  "2 v = test.lstrip ()3 v1 = Test.rstrip ()4 v2 =  Test.strip ()5print(V,V1,V2)

Results:

Feng   Feng Feng

10.translate: convert the corresponding characters

1 " SAEVDDS;GFUIUYV;SDIUJSD " 2 m = Str.maketrans ("aeiou""12345") 3 new_v = v.translate (m)4print(new_v)

Results:

S12vdds;gf535yv;sd35jsd

11.partition,rpartition,split,rsplit: Split by specified character

1Test ="TESTUUFUSKJKSDKD"2v = test.partition ('s')#split up into three points3V1 = test.rpartition ('s')4V2 = Test.split ('s', 2)5V3 = Test.rsplit ('s', 3)6 Print(V, V1, v2, v3)

Results:

('te','s','TUUFUSKJKSDKD') ('TESTUUFUSKJK','s','DKD') ['te','Tuufu','KJKSDKD'] ['te','Tuufu','KJK','DKD']

12.splitlines: Split, only according to, True,false: whether to keep line breaks

1 " WDSDSFD\NSDFDFG\NCADEWEFQ\NSD " 2 v4 = test1.splitlines (True)3print(v4)

Results:

['wdsdsfd\n'sdfdfg\n'cadewefq\ n"sd")

13.startswith,endswith: Start with xxx, end with XX

1 " Backend 1.1.1.1 " 2 v = test.startswith ("a")3print(v) 4 v1 = test.endswith ('a')5print(v1)

Results:

Falsefalse

14.swapcase: Case Conversion

1 " Feng " 2 v = test.swapcase ()3print(v)

Results:

FENG

Well, that's almost all the commonly used string functions

A string of Python data types (ii)