{"id":93847,"date":"2026-08-13T10:25:12","date_gmt":"2026-08-13T02:25:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/93847.html"},"modified":"2026-08-13T10:25:12","modified_gmt":"2026-08-13T02:25:12","slug":"python-%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/93847.html","title":{"rendered":"Python \u57fa\u7840\u77e5\u8bc6"},"content":{"rendered":"

Python\u7a0b\u5e8f<\/h2>\n

Python\u4ea4\u4e92\u6a21\u5f0f<\/h3>\n

\u6572\u4e0b\u547d\u4ee4：<\/span>python3 <\/span> <\/span> \u63d0\u793a\u7b26：<\/span>>>> <\/span> \u8f93\u5165exit() <\/span>\u5e76\u56de\u8f66 \u9000\u51fa python\u4ea4\u4e92\u6a21\u5f0f<\/span> \u56de\u5230 \u547d\u4ee4\u884c\u6a21\u5f0f<\/span><\/p>\n

\"\"<\/p>\n

.py<\/span> \u6587\u4ef6 \u53ea\u80fd\u5728 \u547d\u4ee4\u884c\u6a21\u5f0f python3 hello.py <\/span>—-> \u8def\u5f84\u5728 Python \u4e2d<\/span><\/p>\n

\"\"<\/p>\n

\u547d\u4ee4\u884c\u6a21\u5f0f\u548cPython\u4ea4\u4e92\u6a21\u5f0f<\/h3>\n

\"\"<\/p>\n

Python\u4ea4\u4e92\u5f0f\u73af\u5883\u4e0b<\/span><\/h4>\n

\"\"<\/p>\n

\u8f93\u51fa<\/h3>\n

>>> print('hello,world','relaxing atmosphere','working atmosphere')
\n# hello,world relaxing atmosphere working atmosphere
\n>>> print(100+300)
\n# 400
\n>>> print(400)
\n# 400
\n>>> print('100 + 300 =',100 + 300)
\n# 100 + 300 = 400 <\/p>\n

\u8f93\u5165<\/h3>\n

input()<\/span> \u7528\u6237\u8f93\u5165 \u5b57\u7b26\u4e32<\/span> \u5b58\u653e \u53d8\u91cf <\/span>\u91cc \u53ef\u4ee5\u76f4\u63a5\u8f93\u5165 name<\/span> \u67e5\u770b\u53d8\u91cf\u5185\u5bb9 \/ print()<\/span>\u51fd\u6570<\/p>\n

>>> name = input()
\n# Smile
\n>>> name
\n# 'Smile'
\n>>> print(name)
\n# Smile<\/p>\n

# hello.py
\nname = input('please enter your name:')
\nprint('hello,', name)
\npython3 hello.py
\nplease enter your name: Smile
\nhello,SmIle<\/p>\n

Python\u57fa\u7840<\/h2>\n

\u6570\u636e\u7c7b\u578b\u548c\u53d8\u91cf<\/h3>\n

\u6574\u6570<\/h4>\n

Python \u53ef\u5904\u7406 \u4efb\u610f\u5927\u5c0f\u7684\u6574\u6570 \u5305\u62ec\u8d1f\u6574\u6570<\/p>\n

\u4e8c\u8fdb\u5236：<\/span>\u524d\u7f00 0b\/0B<\/span> 0b1010 ( \u5341\u8fdb\u523610 ) <\/span> \u5341\u516d\u8fdb\u5236：<\/span> \u524d\u7f00 0x \u548c 0-9,a-f<\/span> 0xa\/0XA<\/span> ( \u5341\u8fdb\u523610 )<\/span><\/p>\n

Python\u5141\u8bb8\u6570\u5b57\u4e2d\u4ee5 _<\/span> \u5206\u9694 10_000_000_000 = 10000000000 0xa1b2_c3d4 = 0xa1b2c3d4<\/span><\/p>\n

\u6d6e\u70b9\u6570<\/h4>\n

\u6d6e\u70b9\u6570<\/span> \u4e5f\u5c31\u662f \u5c0f\u6570 10 \u7528 e \u66ff\u4ee3 1.23e9 = 1.23*10^9 \/ 12.3e8 0.000012 = 1.2e-5<\/span><\/p>\n

\u6574\u6570\u8fd0\u7b97\u6c38\u8fdc\u662f\u7cbe\u786e\u7684 \u6d6e\u70b9\u6570\u8fd0\u7b97\u53ef\u80fd\u4f1a\u56db\u820d\u4e94\u5165\u7684\u8bef\u5dee<\/p>\n

\u5b57\u7b26\u4e32<\/h4>\n

\u5b57\u7b26\u4e32<\/span> \u662f\u4ee5 \u5355\u5f15\u53f7' <\/span>\u6216 \u53cc\u5f15\u53f7 "<\/span> \u62ec\u8d77\u6765\u7684\u4efb\u610f\u6587\u672c 'abc' (\u53ea\u6709a,b,c 3\u4e2a\u5b57\u7b26) "where" <\/span><\/p>\n

"I'm ok" (6\u4e2a\u5b57\u7b26) <\/span> \u65e2\u5305\u542b<\/span>'<\/span>\u53c8\u5305\u542b<\/span> "<\/span> \u7528 <\/span>\u8f6c\u4e49\u5b57\u7b26<\/span> \\\\<\/span> \u6765\u6807\u8bc6 <\/span> \u2018I\\\\\u2018m\\\\"OK\\\\"!' —–> I 'm "OK" !<\/span><\/p>\n

\\\\n<\/span> \u8868\u793a\u6362\u884c \\\\t<\/span>\u8868\u793a\u5236\u8868\u7b26 \\\\\\\\<\/span> \u8868\u793a\u5b57\u7b26\u5c31\u662f\\\\ '''…''' <\/span>\u8868\u793a\u591a\u884c\u5185\u5bb9<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u5e03\u5c14\u503c<\/h4>\n

\u5e03\u5c14\u503c \u7ecf\u5e38\u7528\u5728 \u6761\u4ef6\u5224\u65ad \u4e2d<\/p>\n

\u5e03\u5c14\u503c：<\/span>True , False<\/span><\/p>\n

\"\"<\/p>\n

\u8fd0\u7b97：and , or , not<\/p>\n

and \u4e0e\u8fd0\u7b97<\/span> \u6240\u6709\u90fd\u662fTrue \u7ed3\u679c\u4e3aTrue<\/p>\n

\"\"<\/p>\n

or \u6216\u8fd0\u7b97<\/span> \u5176\u4e2d\u4e00\u4e2a\u4e3aTrue \u7ed3\u679c\u4e3aTrue<\/p>\n

\"\"<\/p>\n

not \u975e\u8fd0\u7b97<\/span> \u5355\u76ee\u8fd0\u7b97\u7b26 True\u53d8False False\u53d8True<\/p>\n

\"\"<\/p>\n

\u7a7a\u503c<\/h4>\n

\u7a7a\u503c：<\/span> None<\/span> None \u4e0d\u80fd\u7406\u89e3\u4e3a 0 0 \u4e3a\u6709\u610f\u4e49\u7684 None \u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u7a7a\u503c<\/p>\n

\u53d8\u91cf<\/h4>\n

\u53d8\u91cf \u5728\u7a0b\u5e8f\u4e2d\u7528\u4e00\u4e2a \u53d8\u91cf\u540d \u8868\u793a \u53d8\u91cf\u540d：<\/span>\u5927\u5c0f\u5199\u82f1\u6587\u3001\u6570\u5b57\u548c_ \u7ec4\u5408 \u4e0d\u80fd\u7528\u6570\u5b57\u5f00\u5934<\/span><\/p>\n

\u52a8\u6001\u8bed\u8a00 \u53d8\u91cf\u672c\u8eab\u7c7b\u578b \u4e0d\u56fa\u5b9a\u7684\u8bed\u8a00<\/p>\n

a = 123 #a\u662f\u6574\u6570<\/p>\n

print(a)<\/p>\n

a = 'ABC' #a\u53d8\u4e3a \u5b57\u7b26\u4e32<\/p>\n

print(a)<\/p>\n

\u9759\u6001\u8bed\u8a00 \u5b9a\u4e49\u53d8\u91cf\u65f6 \u5fc5\u987b\u6307\u5b9a\u53d8\u91cf\u7c7b\u578b \u5982\u679c\u8d4b\u503c\u7c7b\u578b\u4e0d\u5339\u914d \u62a5\u9519<\/span><\/p>\n

\/\/ Java \u662f\u9759\u6001\u8bed\u8a00<\/p>\n

int a = 123; \/\/ a \u6574\u6570\u7c7b\u578b\u53d8\u91cf<\/p>\n

a = "ABC"; \/\/ \u9519\u8bef：\u4e0d\u80fd\u628a \u5b57\u7b26\u4e32 \u8d4b\u7ed9 \u6574\u578b\u53d8\u91cf<\/p>\n

a = 'ABC'<\/p>\n

Python \u89e3\u91ca\u5668：<\/p>\n

1. \u5185\u5b58\u4e2d \u521b\u5efa\u4e00\u4e2a 'ABC' \u5b57\u7b26\u4e32<\/p>\n

2.\u5185\u5b58\u4e2d \u521b\u5efa\u4e00\u4e2a\u540d\u4e3a a \u7684\u53d8\u91cf \u5e76 \u6307\u5411 'ABC'<\/p>\n

\"\"<\/p>\n

\u5e38\u91cf<\/h4>\n

\u5e38\u91cf：<\/span>\u4e0d\u80fd\u53d8\u7684\u53d8\u91cf \u5168\u90e8\u5927\u5199\u7684\u53d8\u91cf \u5e38\u6570\u03c0 MA = 3.141592653589<\/span><\/p>\n

Python\u9664\u6cd5<\/h3>\n

\"\"<\/p>\n

\u5b57\u7b26\u4e32\u548c\u7f16\u7801<\/h3>\n

\u5b57\u7b26\u7f16\u7801<\/h4>\n

\u7f16\u7801\u51fa\u73b0\u7684\u5e95\u5c42\u539f\u56e0：\u8ba1\u7b97\u673a\u53ea\u80fd\u5904\u7406\u6570\u5b57 \u6587\u672c\u9700\u8f6c\u5316\u4e3a\u6570\u5b57(\u7f16\u7801)\u624d\u53ef\u88ab\u5904\u7406 \u4e0d\u540c\u8bed\u8a00\u5bf9\u7f16\u7801\u9700\u6c42\u4e0d\u540c<\/p>\n

ASCII \u57fa\u7840\u6b3e<\/span> \u57fa\u7840\u5355\u5b50\u8282 \u4ec5\u8986\u76d6\u82f1\u6587\u5b57\u7b26\/\u6570\u5b57\/\u57fa\u7840\u7b26\u53f7(127\u4e2a) \u6240\u6709\u7f16\u7801\u57fa\u7840 \u65e0\u6cd5\u517c\u5bb9\u591a\u8bed\u8a00<\/p>\n

Unicode \u7edf\u4e00\u6b3e<\/span> \u7edf\u4e00\u591a\u8bed\u8a00\u5b57\u7b26\u96c6 \u89e3\u51b3\u4e71\u7801\u95ee\u9898 \u5e38\u7528 UCS-16\u7f16\u7801(2\/4\u5b57\u8282 \u56fa\u5b9a\u957f\u5ea6) \u7eaf\u82f1\u4e0b\u6bd4ASCII\u591a\u53601\u500d\u7a7a\u95f4<\/p>\n

UTF-8 \u5b9e\u7528\u6b3e<\/span> Unicode\u7684\u201c\u53ef\u53d8\u957f\u7f16\u7801\u201d\u5b9e\u73b0 \u517c\u5bb9ASCII \u82f1\u6587(1\u5b57\u8282) \u6c49\u5b57(3\u5b57\u8282) \u751f\u50fb\u5b57\u7b26(1-6\u5b57\u8282) \u517c\u987e\u591a \u8bed\u8a00 \u548c \u5b58\u50a8\/\u4f20\u8f93\u6548\u7387<\/p>\n

\u8ba1\u7b97\u673a\u7cfb\u7edf\u7f16\u7801\u5de5\u4f5c\u6d41\u7a0b<\/h5>\n

\u5185\u5b58\u4e2d： \u7edf\u4e00\u7528Unicode\u7f16\u7801 —- \u65b9\u4fbf\u591a\u8bed\u8a00\u5904\u7406<\/p>\n

\u5b58\u50a8\/\u4f20\u8f93（\u786c\u76d8\/\u7f51\u7edc）： \u8f6c\u5316\u4e3a UTF-8\u7f16\u7801 —- \u8282\u7701\u7a7a\u95f4<\/p>\n

\u8bb0\u4e8b\u672c\u7f16\u8f91\u3001\u7f51\u9875\u6d4f\u89c8\u9075\u5faa\u201c\u8bfb\u53d6UTF-8 –> \u8f6cUnicode\u5230\u5185\u5b58 –> \u7f16\u8f91\u540e\u8f6cUTF-8 \u4fdd\u5b58\/\u4f20\u8f93\u201d<\/span><\/p>\n\n\n\n\n\n\n
\u7f16\u7801\u7c7b\u578b<\/td>\n\u5b57\u8282\u957f\u5ea6<\/td>\n\u6838\u5fc3\u4f5c\u7528<\/td>\n\u9002\u7528\u573a\u666f<\/td>\n<\/tr>\n
ASCII<\/td>\n\u56fa\u5b9a1\u5b57\u8282<\/td>\n\u57fa\u7840\u82f1\u6587\u7f16\u7801<\/td>\n\u5386\u53f2\u9057\u7559\u8f6f\u4ef6\u3001\u7eaf\u82f1\u6587\u6587\u672c<\/td>\n<\/tr>\n
Unicode<\/td>\n\u56fa\u5b9a2\/4\u5b57\u8282<\/td>\n\u7edf\u4e00\u591a\u8bed\u8a00\u5b57\u7b26\u96c6<\/td>\n\u8ba1\u7b97\u673a\u5185\u5b58\u5904\u7406\u6587\u672c<\/td>\n<\/tr>\n
UTF-8<\/td>\n\u53ef\u53d81-6\u5b57\u8282<\/td>\n\u9ad8\u6548\u5b58\u50a8\/\u4f20\u8f93<\/td>\n\u6587\u4ef6\u4fdd\u5b58\u3001\u7f51\u9875\u4f20\u8f93\u3001\u591a\u8bed\u8a00\u6587\u672c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Python\u5b57\u7b26\u4e32<\/h4>\n

Python3 \u5b57\u7b26\u4e32 Unicode\u7f16\u7801<\/p>\n

ord()<\/span>\u51fd\u6570 \u83b7\u53d6\u5b57\u7b26\u6574\u6570\u8868\u793a chr()<\/span>\u51fd\u6570 \u628a\u7f16\u7801\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u5b57\u7b26<\/p>\n

print('\u5305\u542b\u4e2d\u6587\u7684str')
\n# \u5305\u542b\u4e2d\u6587\u7684str
\nord('A')
\n# 65
\nord('\u4e2d')
\n# 20013
\nchr(66)
\n# 'B'
\nchr(25991)
\n# '\u6587'<\/p>\n

Python\u5b57\u7b26\u4e32\u7c7b\u578b<\/span> str<\/span><\/p>\n

\u5185\u5b58\u4e2d： Unicode 1\u5b57\u7b26\u5bf9\u5e94\u82e5\u5e72\u4e2a\u5b57\u8282<\/p>\n

\u5b58\u50a8\/\u4f20\u8f93（\u786c\u76d8\/\u7f51\u7edc）： str \u53d8\u4e3a\u4ee5 \u5b57\u8282 \u4e3a\u5355\u4f4d\u7684 bytes<\/p>\n

Python \u5bf9 bytes \u7c7b\u578b\u6570\u636e \u7528 b <\/span> \u524d\u7f00 \u5355\u5f15\u53f7<\/span> \u6216 \u53cc\u5f15\u53f7<\/span> \u8868\u793a：<\/p>\n

x = b'ABC'<\/p>\n

'ABC' b'ABC' \u524d\u8005\u662f str \u540e\u8005 \u867d\u7136\u5185\u5bb9\u548c\u524d\u8005\u4e00\u6837 \u4f46bytes \u6bcf\u4e2a\u5b57\u7b26\u90fd\u53ea\u5360\u7528\u4e00\u4e2a\u5b57\u8282<\/span><\/p>\n

Unicode \u8868\u793a\u7684 str<\/span> \u901a\u8fc7 encode()<\/span> \u53ef\u7f16\u7801\u4e3a\u6307\u5b9a\u7684 bytes<\/span><\/p>\n

>>> 'ABC'.encode('ascii')
\nb'ABC'
\n>>> '\u4e2d\u6587'.encode('utf-8')
\nb'\\\\xe4\\\\xb8\\\\xad\\\\xe6\\\\x96\\\\x87'
\n>>> '\u4e2d\u6587'.encode('ascii')
\nTraceback (most recent call last):
\n File "<stdin>", line 1, in <module>
\nUnicodeEncodeError: 'ascii' codec can't encode characters in position 0-1: ordinal not in range(128)<\/p>\n

\u5728bytes\u4e2d \u65e0\u6cd5\u663e\u793a\u4e3aASCII\u5b57\u7b26\u7684\u5b57\u8282 \u7528 <\/span>\\\\x## <\/span>\u663e\u793a<\/span><\/p>\n

\u7f51\u7edc\u6216\u786c\u76d8\u8bfb\u53d6\u5b57\u8282\u6d41 \u8bfb\u53d6\u5230\u7684\u6570\u636e\u4e3a bytes bytes—>str \u7528decode()<\/span><\/p>\n

>>> b'ABC'.decode('ascii')
\n'ABC'
\n>>> b'\\\\xe4\\\\xb8\\\\xad\\\\xe6\\\\x96\\\\x87'.decode('utf-8')
\n'\u4e2d\u6587'<\/p>\n

bytes\u4e2d \u5305\u542b \u65e0\u6cd5\u89e3\u7801\u7684\u5b57\u8282 decode()\u65b9\u6cd5\u4f1a\u62a5\u9519<\/p>\n

>>> b'\\\\xe4\\\\xb8\\\\xad\\\\xff'.decode('utf-8')
\nTraceback (most recent call last):
\n …
\nUnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 3: invalid start byte<\/p>\n

bytes\u4e2d \u53ea\u6709\u4e00\u5c0f\u90e8\u5206\u65e0\u6548\u7684\u5b57\u8282 \u53ef\u4f20\u5165 errors='ignore'\u00a0\u5ffd\u7565\u9519\u8bef\u7684\u5b57\u8282<\/p>\n

>>> b'\\\\xe4\\\\xb8\\\\xad\\\\xff'.decode('utf-8', errors='ignore')
\n'\u4e2d'<\/p>\n

Calculate the number of characters in a str<\/span> using the len()<\/span> function<\/p>\n

>>> len('ABC')
\n3
\n>>> len('\u4e2d\u6587')
\n2<\/p>\n

\u8ba1\u7b97 bytes<\/span> \u542b\u591a\u5c11\u5b57\u7b26 len()<\/span>\u51fd\u6570<\/p>\n

>>> len(b'ABC')
\n3
\n>>> len(b'\\\\xe4\\\\xb8\\\\xad\\\\xe6\\\\x96\\\\x87')
\n6
\n>>> len('\u4e2d\u6587'.encode('utf-8'))
\n6<\/p>\n

\u6e90\u4ee3\u7801\u4e2d\u5305\u542b\u4e2d\u6587\u65f6 \u6587\u4ef6\u5f00\u5934\u5199\u5165<\/p>\n

#!\/usr\/bin\/env python3
\n# -*- coding: utf-8 -*-<\/p>\n

\u6309\u7167UTF-8\u7f16\u7801\u8bfb\u53d6<\/p>\n

\u683c\u5f0f\u5316<\/h4>\n

% \u8fd0\u7b97\u7b26<\/span> \u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n

\u6709\u51e0\u4e2a %? \u5360\u4f4d\u7b26 \u540e\u9762\u5c31\u8ddf\u51e0\u4e2a\u53d8\u91cf\u6216\u503c<\/p>\n\n\n\n\n\n\n\n\n
\u5360\u4f4d\u7b26<\/td>\n\u66ff\u6362\u5185\u5bb9<\/td>\n<\/tr>\n
%d<\/td>\n\u6574\u6570<\/td>\n<\/tr>\n
%f<\/td>\n\n

\u6d6e\u70b9\u6570<\/p>\n<\/td>\n<\/tr>\n

\n

%s<\/p>\n<\/td>\n

\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n
%x<\/td>\n\u5341\u516d\u8fdb\u5236\u6574\u6570<\/td>\n<\/tr>\n
%%<\/td>\n%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"\"<\/p>\n

format() \u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/span><\/h4>\n

\"\"<\/p>\n

f-string<\/h4>\n

\"\"<\/p>\n

{r} \u88ab\u53d8\u91cf r \u503c\u66ff\u6362 {s : .2f} \u88ab\u53d8\u91cf s \u503c\u66ff\u6362<\/p>\n

list \u548c tuple<\/h3>\n

list<\/h4>\n

Python\u5185\u7f6e \u4e00\u79cd \u6570\u636e\u7c7b\u578b \u5217\u8868 list ( \u6709\u5e8f\u96c6\u5408 \u968f\u65f6 \u6dfb\u52a0 \u548c \u5220\u9664 \u5176\u4e2d\u7684\u5143\u7d20)<\/p>\n

>>> classmates = [ 'Michael', 'LoL', 'Bob']
\n>>> classmates
\n['Michael', 'LoL', 'Bob']
\n#\u53d8\u91cf classmates \u00a0\u5c31\u662f\u4e00\u4e2a list<\/p>\n

len() \u51fd\u6570<\/span><\/h5>\n

\u53ef\u4ee5\u83b7\u5f97list \u5143\u7d20 \u4e2a\u6570<\/p>\n

>>> len(classmates)
\n3<\/p>\n

\u7d22\u5f15 \u8bbf\u95ee list\u4e2d\u6bcf\u4e00\u4e2a\u5143\u7d20\u4f4d\u7f6e \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u7d22\u5f15\u4ece 0 \u5f00\u59cb<\/span><\/p>\n

>>> classmates[0]
\n'Michael'
\n>>> classmates[1]
\n'LoL'
\n>>> classmates[2]
\n'Bob'
\n>>> classmates[3]
\nTraceback (most recent call last):
\n File "<stdin>", line 1, in <module>
\nIndexError: list index out of range
\n#\u7d22\u5f15\u8d85\u51fa\u4e86\u8303\u56f4\u65f6 \u00a0 Python\u4f1a\u62a5\u4e00\u4e2a \u00a0IndexError\u00a0\u9519\u8bef
\n#\u786e\u4fdd\u7d22\u5f15\u4e0d\u8981\u8d8a\u754c \u00a0 \u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u662f \u00a0 \u00a0len(classmates) – 1<\/p>\n

-1\u505a\u7d22\u5f15 \u00a0 \u00a0 \u00a0\u76f4\u63a5\u83b7\u53d6\u6700\u540e\u4e00\u4e2a\u5143\u7d20<\/p>\n

>>> classmates[-1]
\n'Bob'
\n>>> classmates[-2]
\n'LoL'
\n>>> classmates[-3]
\n'Michael'
\n>>> classmates[-4]
\nTraceback (most recent call last):
\n File "<stdin>", line 1, in <module>
\nIndexError: list index out of range<\/p>\n

.append() \u00a0\u8ffd\u52a0 \u672b\u5c3e<\/h5>\n

list\u4e2d \u8ffd\u52a0 \u5143\u7d20\u5230\u672b\u5c3e<\/p>\n

>>> classmates.append('Adam')
\n>>> classmates
\n['Michael', 'Bob', 'Tracy', 'Adam']<\/p>\n

.insert() \u63d2\u5165 \u6307\u5b9a<\/h5>\n

\u63d2\u5165 \u5230\u6307\u5b9a\u4f4d\u7f6e \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u6bd4\u5982 \u7d22\u5f15\u53f7\u4e3a 1 \u7684\u4f4d\u7f6e<\/p>\n

>>> classmates.insert(1, 'Jack')
\n>>> classmates
\n['Michael', 'Jack', 'Bob', 'Tracy', 'Adam']<\/p>\n

pop() \u00a0\u5220\u9664 \u672b\u5c3e<\/h5>\n

\u5220\u9664 list \u672b\u5c3e\u5143\u7d20<\/p>\n

>>> classmates.pop()
\n'Adam'
\n>>> classmates
\n['Michael', 'Jack', 'Bob', 'Tracy']<\/p>\n

pop(i) \u00a0\u5220\u9664 \u6307\u5b9a<\/h5>\n

\u5220\u9664 \u6307\u5b9a \u4f4d\u7f6e\u5143\u7d20 \u00a0 \u00a0 \u00a0 i \u662f \u7d22\u5f15\u4f4d\u7f6e<\/p>\n

>>> classmates.pop(1)
\n'Jack'
\n>>> classmates
\n['Michael', 'Bob', 'Tracy']<\/p>\n

\u66ff\u6362<\/h5>\n

\u628a\u67d0\u4e2a\u5143\u7d20 \u66ff\u6362 \u6210\u522b\u7684\u5143\u7d20 \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u76f4\u63a5\u8d4b\u503c\u7ed9\u5bf9\u5e94\u7684\u7d22\u5f15\u4f4d\u7f6e<\/p>\n

>>> classmates[1] = 'Sarah'
\n>>> classmates
\n['Michael', 'Sarah', 'Tracy']<\/p>\n

\u6570\u636e\u7c7b\u578b\u53ef\u4e0d\u540c<\/h5>\n

>>> L = ['Apple', 123, True]
\n#list\u5143\u7d20\u4e5f\u53ef\u4ee5\u662f\u53e6\u4e00\u4e2alist
\n>>> s = ['python', 'java', ['asp', 'php'], 'scheme']
\n>>> len(s)
\n4<\/p>\n

>>> p = ['asp', 'php']
\n>>> s = ['python', 'java', p, 'scheme']
\n#'php'\u53ef\u4ee5\u5199p[1]\u6216\u8005s[2][1]<\/p>\n

\u7a7a<\/h5>\n

list\u4e2d\u4e00\u4e2a\u5143\u7d20\u4e5f\u6ca1\u6709 \u00a0 \u5c31\u662f\u4e00\u4e2a\u7a7a\u7684list \u00a0 \u00a0\u957f\u5ea6\u4e3a0<\/p>\n

>>> L = []
\n>>> len(L)
\n0<\/p>\n

tuple<\/h4>\n

\u53e6\u4e00\u79cd\u6709\u5e8f\u5217\u8868\u53eb\u00a0\u5143\u7ec4：tuple<\/span><\/p>\n

tuple\u548clist\u975e\u5e38\u7c7b\u4f3c \u00a0 \u4f46tuple\u4e00\u65e6\u521d\u59cb\u5316\u5c31\u4e0d\u80fd\u4fee\u6539<\/span><\/p>\n

>>> classmates = ('Michael', 'Bob', 'Tracy')
\n#\u5217\u51fa\u540c\u5b66\u540d\u5b57<\/p>\n

classmates\u8fd9\u4e2atuple\u4e0d\u80fd\u53d8 \u00a0 \u5b83\u4e5f\u6ca1\u6709append() \u00a0insert()<\/span><\/p>\n

\u5176\u4ed6\u83b7\u53d6\u5143\u7d20\u7684\u65b9\u6cd5\u548clist\u662f\u4e00\u6837\u7684 \u00a0\u4f60\u53ef\u4ee5\u6b63\u5e38\u5730\u4f7f\u7528classmates[0]\u00a0<\/font>classmates[-1]\u4f46\u4e0d\u80fd\u8d4b\u503c<\/span>\u6210\u53e6\u5916\u7684\u5143\u7d20<\/p>\n

\u4e0d\u53ef\u53d8\u7684tuple\u6709\u4ec0\u4e48\u610f\u4e49？<\/p>\n

\u56e0\u4e3atuple\u4e0d\u53ef\u53d8 \u00a0\u6240\u4ee5\u4ee3\u7801\u66f4\u5b89\u5168 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0 \u5982\u679c\u53ef\u80fd \u00a0\u80fd\u7528tuple\u4ee3\u66fflist\u5c31\u5c3d\u91cf\u7528tuple<\/p>\n

\u5b9a\u4e49 tuple<\/h5>\n

\u5728\u5b9a\u4e49\u65f6\u00a0 \u00a0 \u00a0tuple\u7684\u5143\u7d20 \u00a0\u5fc5\u987b\u88ab\u786e\u5b9a\u4e0b\u6765<\/span><\/p>\n

>>> t = (1, 2)
\n>>> t
\n(1, 2)<\/p>\n

\u7a7a ()<\/h5>\n

\u5982\u679c\u8981\u5b9a\u4e49\u4e00\u4e2a\u7a7a\u7684tuple \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u5199\u6210()<\/p>\n

>>> t = ()
\n>>> t
\n()<\/p>\n

\u4e00\u4e2a\u5143\u7d20<\/h5>\n

\u5b9a\u4e49\u4e00\u4e2a\u53ea\u67091\u4e2a\u5143\u7d20\u7684tuple<\/p>\n

>>> t = (1)
\n>>> t
\n1<\/p>\n

\u6ce8\u610f: \u5b9a\u4e49\u7684\u4e0d\u662ftuple \u00a0 \u00a0 \u00a0 \u00a0\u662f1\u8fd9\u4e2a\u6570！<\/span><\/p>\n

\u56e0\u4e3a\u62ec\u53f7\u00a0()\u00a0\u65e2\u53ef\u4ee5\u8868\u793atuple<\/span>，\u53c8\u53ef\u8868\u793a\u6570\u5b66\u516c\u5f0f\u4e2d\u7684\u5c0f\u62ec\u53f7<\/span><\/p>\n

\u56e0\u6b64 \u00a0 \u00a0Python\u89c4\u5b9a \u00a0 \u8fd9\u79cd\u60c5\u51b5\u4e0b \u00a0 \u6309\u5c0f\u62ec\u53f7\u8fdb\u884c\u8ba1\u7b97 \u00a0 \u00a0\u00a0\u8ba1\u7b97\u7ed3\u679c\u81ea\u7136\u662f1<\/p>\n

\u53ea\u67091\u4e2a\u5143\u7d20 \u00a0 tuple \u00a0 \u5b9a\u4e49 \u00a0 \u00a0 \u5fc5\u987b\u52a0\u4e00\u4e2a\u9017\u53f7 \u00a0,<\/p>\n

>>> t = (1,)
\n>>> t
\n(1,)
\n#Python\u5728\u663e\u793a\u53ea\u67091\u4e2a\u5143\u7d20\u7684tuple\u65f6 \u4e5f\u4f1a\u52a0\u4e00\u4e2a\u9017\u53f7, \u4ee5\u514d\u8bef\u89e3\u6210\u6570\u5b66\u8ba1\u7b97\u610f\u4e49\u4e0a\u7684\u62ec\u53f7<\/p>\n

\u7279\u6b8a \u201c\u53ef\u53d8\u7684\u201d tuple<\/h5>\n

>>> t = ('a', 'b', ['A', 'B'])
\n>>> t[2][0] = 'X'
\n>>> t[2][1] = 'Y'
\n>>> t
\n('a', 'b', ['X', 'Y'])<\/p>\n

tuple\u5b9a\u4e49 \u00a0 \u00a03\u4e2a\u5143\u7d20 \u00a0 \u5206\u522b\u662f'a'\u00a0 \u00a0<\/font>'b' \u548c\u00a0\u4e00\u4e2alist<\/p>\n

\"\"<\/p>\n

list\u7684\u5143\u7d20'A'\u548c'B'\u00a0\u4fee\u6539\u4e3a' X'\u548c'Y'\u00a0tuple\u53d8\u4e3a：<\/p>\n

\"\"<\/p>\n

\u8868\u9762\u4e0a\u770b，tuple\u7684\u5143\u7d20\u786e\u5b9e\u53d8\u4e86，\u4f46\u5176\u5b9e\u53d8\u7684\u4e0d\u662ftuple\u7684\u5143\u7d20，\u800c\u662flist\u7684\u5143\u7d20\u3002<\/p>\n

tuple\u4e00\u5f00\u59cb\u6307\u5411\u7684list\u5e76\u6ca1\u6709\u6539\u6210\u522b\u7684list，\u6240\u4ee5，tuple\u6240\u8c13\u7684\u201c\u4e0d\u53d8\u201d\u662f\u8bf4，tuple\u7684\u6bcf\u4e2a\u5143\u7d20，\u6307\u5411\u6c38\u8fdc\u4e0d\u53d8\u3002\u5373\u6307\u5411'a'，\u5c31\u4e0d\u80fd\u6539\u6210\u6307\u5411'b'，\u6307\u5411\u4e00\u4e2alist，\u5c31\u4e0d\u80fd\u6539\u6210\u6307\u5411\u5176\u4ed6\u5bf9\u8c61，\u4f46\u6307\u5411\u7684\u8fd9\u4e2alist\u672c\u8eab\u662f\u53ef\u53d8\u7684！<\/p>\n

\u5fc5\u987b\u4fdd\u8bc1tuple\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u672c\u8eab\u4e0d\u80fd\u53d8<\/span><\/p>\n

\u6761\u4ef6\u5224\u65ad<\/h3>\n

if <\u6761\u4ef6\u5224\u65ad1>:
\n\u00a0 \u00a0 <\u6267\u884c1>
\nelif <\u6761\u4ef6\u5224\u65ad2>:
\n\u00a0 \u00a0 <\u6267\u884c2>
\nelif <\u6761\u4ef6\u5224\u65ad3>:
\n\u00a0 \u00a0 <\u6267\u884c3>
\nelse:
\n\u00a0 \u00a0 <\u6267\u884c4><\/p>\n

age = 20
\nif age >= 6:
\n print('teenager')
\nelif age >= 18:
\n print('adult')
\nelse:
\n print('kid')<\/p>\n

input()<\/h4>\n

input()\u00a0\u8fd4\u56de\u7684\u6570\u636e\u7c7b\u578b\u662f\u00a0str<\/p>\n

str\u00a0\u4e0d\u80fd\u76f4\u63a5\u548c\u6574\u6570\u6bd4\u8f83 \u00a0 \u00a0\u00a0str\u8f6c\u6362\u6210\u6574\u6570<\/p>\n

Python\u63d0\u4f9b\u4e86 \u00a0int()\u51fd\u6570<\/p>\n

s = input('birth: ')
\nbirth = int(s)
\nif birth < 2000:
\n print('00\u524d')
\nelse:
\n print('00\u540e')<\/p>\n

\u6a21\u5f0f\u5339\u914d<\/h3>\n

if \u8bed\u53e5<\/p>\n

score = 'B'
\nif score == 'A':
\n print('score is A.')
\nelif score == 'B':
\n print('score is B.')
\nelif score == 'C':
\n print('score is C.')
\nelse:
\n print('invalid score.')<\/p>\n

match \u8bed\u53e5<\/h4>\n

\u5728\u6700\u540e（\u4e14\u4ec5\u80fd\u5728\u6700\u540e）\u52a0\u4e00\u4e2acase _\u8868\u793a\u201c\u4efb\u610f\u503c\u201d<\/p>\n

score = 'B'<\/p>\n

match score:
\n case 'A':
\n print('score is A.')
\n case 'B':
\n print('score is B.')
\n case 'C':
\n print('score is C.')
\n case _: # _\u8868\u793a\u5339\u914d\u5230\u5176\u4ed6\u4efb\u4f55\u60c5\u51b5
\n print('score is ???.')<\/p>\n

\u590d\u6742\u5339\u914d<\/h3>\n

match\u8bed\u53e5 \u00a0 \u53ef\u5339\u914d \u00a0 \u591a\u4e2a\u503c \u00a0\u5339\u914d\u4e00\u5b9a\u8303\u56f4 \u00a0<\/span><\/p>\n

\u5e76\u4e14\u628a\u5339\u914d\u540e\u7684\u503c\u7ed1\u5b9a\u5230\u53d8\u91cf<\/p>\n

age = 15<\/p>\n

match age:
\n case x if x < 10:
\n print(f'< 10 years old: {x}')
\n case 10:
\n print('10 years old.')
\n case 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18:
\n print('11~18 years old.')
\n case 19:
\n print('19 years old.')
\n case _:
\n print('not sure.')<\/p>\n

    \n
  • \u00a0\u00a0case x if x < 10 \u00a0\u8868 \u00a0\u00a0age < 10 \u00a0\u6210\u7acb\u65f6\u5339\u914d \u00a0 \u00a0 \u4e14\u8d4b\u503c\u7ed9\u53d8\u91cfx<\/li>\n
  • \u00a0 case 10 \u00a0 \u00a0\u4ec5\u5339\u914d\u5355\u4e2a\u503c<\/li>\n
  • \u00a0\u00a0case 11|12|…|18\u00a0\u5339\u914d\u591a\u4e2a\u503c \u00a0 \u00a0 \u00a0 \u00a0 \u7528|<\/span>\u5206\u9694<\/li>\n<\/ul>\n

    \u5339\u914d\u5217\u8868<\/h3>\n

    #\u7528 args = ['gcc', 'hello.c', 'world.c'] \u5b58\u50a8
    \nargs = ['gcc', 'hello.c', 'world.c']
    \n# args = ['clean']
    \n# args = ['gcc']<\/p>\n

    match args:
    \n # \u5982\u679c\u4ec5\u51fa\u73b0gcc，\u62a5\u9519:
    \n case ['gcc']:
    \n print('gcc: missing source file(s).')
    \n # \u51fa\u73b0gcc，\u4e14\u81f3\u5c11\u6307\u5b9a\u4e86\u4e00\u4e2a\u6587\u4ef6:
    \n case ['gcc', file1, *files]:
    \n print('gcc compile: ' + file1 + ', ' + ', '.join(files))
    \n # \u4ec5\u51fa\u73b0clean:
    \n case ['clean']:
    \n print('clean')
    \n case _:
    \n print('invalid command.')<\/p>\n

      \n
    • case ['gcc'] \u00a0\u00a0\u8868\u793a\u5217\u8868\u4ec5\u6709'gcc'\u4e00\u4e2a\u5b57\u7b26\u4e32 \u00a0 \u00a0\u6ca1\u6709\u6307\u5b9a\u6587\u4ef6\u540d \u00a0 \u00a0 \u62a5\u9519<\/li>\n
    • case ['gcc', file1, *files] \u00a0 \u8868\u793a\u5217\u8868\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f'gcc' \u00a0\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\u7ed1\u5b9a\u5230\u53d8\u91cffile1 \u00a0\u00a0\u540e\u9762\u7684\u4efb\u610f\u4e2a\u5b57\u7b26\u4e32\u7ed1\u5b9a\u5230*files \u00a0\u00a0\u5b9e\u9645\u4e0a\u8868\u793a\u81f3\u5c11\u6307\u5b9a\u4e00\u4e2a\u6587\u4ef6<\/li>\n
    • case ['clean'] \u00a0\u00a0\u8868\u793a\u5217\u8868\u4ec5\u6709'clean'\u4e00\u4e2a\u5b57\u7b26\u4e32<\/li>\n
    • case _ \u00a0\u00a0\u8868\u793a\u5176\u4ed6\u6240\u6709\u60c5\u51b5<\/li>\n<\/ul>\n

      \u5faa\u73af<\/h3>\n

      for … in …. \u5faa\u73af<\/h4>\n

      \u8ba1\u7b97 1 – 10 \u6574\u6570\u4e4b\u548c：<\/p>\n

      sum = 0
      \nfor x in [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]:
      \n sum = sum + x
      \nprint(sum)<\/p>\n

      range(）\u51fd\u6570<\/h5>\n

      range()\u51fd\u6570 \u00a0 \u53ef \u751f\u6210\u4e00\u4e2a \u6574\u6570\u5e8f\u5217 \u00a0 \u00a0\u518d\u901a\u8fc7\u00a0list()\u51fd\u6570 \u8f6c\u6362\u4e3a list<\/p>\n

      \u6bd4\u5982\u00a0range(5)\u00a0\u751f\u6210\u7684 \u5e8f\u5217 \u662f\u4ece 0 \u5f00\u59cb \u5c0f\u4e8e5 \u7684 \u6574\u6570<\/p>\n

      >>> list(range(5))
      \n[0, 1, 2, 3, 4]<\/p>\n

      \u8ba1\u7b97 1 – 100 \u6574\u6570\u4e4b\u548c：<\/p>\n

      sum = 0
      \nfor x in range(101):
      \n sum = sum + x
      \nprint(sum)<\/p>\n

      while \u5faa\u73af<\/h4>\n

      \u6761\u4ef6\u6ee1\u8db3 \u00a0 \u4e0d\u65ad\u5faa\u73af<\/p>\n

      \u6761\u4ef6\u4e0d\u6ee1\u8db3 \u00a0\u9000\u51fa\u5faa\u73af<\/p>\n

      100\u4ee5\u5185\u6240\u6709\u5947\u6570\u4e4b\u548c:<\/p>\n

      sum = 0
      \nn = 99
      \nwhile n > 0:
      \n sum = sum + n
      \n n = n – 2
      \nprint(sum)<\/p>\n

      break<\/h4>\n

      \u53ef \u63d0\u524d \u9000\u51fa\u5faa\u73af<\/p>\n

      n = 1
      \nwhile n <= 100:
      \n if n > 10: # \u5f53n = 11\u65f6，\u6761\u4ef6\u6ee1\u8db3，\u6267\u884cbreak\u8bed\u53e5
      \n break # break\u8bed\u53e5\u4f1a\u7ed3\u675f\u5f53\u524d\u5faa\u73af
      \n print(n)
      \n n = n + 1
      \nprint('END')<\/p>\n

      continue<\/h4>\n

      \u8df3\u8fc7 \u5f53\u524d\u8fd9\u6b21\u5faa\u73af \u00a0 \u76f4\u63a5\u5f00\u59cb \u00a0\u4e0b\u4e00\u6b21\u5faa\u73af<\/p>\n

      n = 0
      \nwhile n < 10:
      \n n = n + 1
      \n if n % 2 == 0: # \u5982\u679cn\u662f\u5076\u6570，\u6267\u884ccontinue\u8bed\u53e5
      \n continue # continue\u8bed\u53e5\u4f1a\u76f4\u63a5\u7ee7\u7eed\u4e0b\u4e00\u8f6e\u5faa\u73af，\u540e\u7eed\u7684print()\u8bed\u53e5\u4e0d\u4f1a\u6267\u884c
      \n print(n)<\/p>\n

      dict \u548c set<\/h3>\n

      dict<\/h4>\n

      Python\u5185\u7f6e\u4e86\u5b57\u5178：dict\u7684\u652f\u6301 \u00a0 \u00a0dict\u5168\u79f0 dictionary \u00a0 \u5728\u5176\u4ed6\u8bed\u8a00\u4e2d\u79f0 map \u00a0\u4f7f\u7528\u952e-\u503c（key-value）\u5b58\u50a8 \u00a0\u5177\u6709\u6781\u5feb\u7684\u67e5\u627e\u901f\u5ea6<\/p>\n

      >>> d = {'Michael': 95, 'Bob': 75, 'Tracy': 85}
      \n>>> d['Michael']
      \n95<\/p>\n

      key \u653e\u5165<\/p>\n

      >>> d['Adam'] = 67
      \n>>> d['Adam']
      \n67<\/p>\n

      \u4e00\u4e2a key \u5bf9\u5e94 \u4e00\u4e2a value \u00a0 \u00a0 \u00a0 \u00a0 —–>\u00a0 \u00a0 \u00a0 \u00a0 \u540e\u9762\u7684\u503c \u00a0\u4f1a\u628a \u524d\u9762\u7684\u503c \u51b2\u6389<\/p>\n

      \u5982\u679c key \u4e0d\u5b58\u5728 \u00a0 \u00a0dict \u00a0\u62a5\u9519<\/p>\n

      \u907f\u514dkey\u4e0d\u5b58\u5728\u65b9\u6cd5：<\/p>\n

      \u00a0in \u00a0\u5224\u65adkey \u662f\u5426\u5b58\u5728<\/span><\/p>\n

      >>> 'Thomas' in d
      \nFalse<\/p>\n

      get() \u65b9\u6cd5<\/span><\/p>\n

      \u5982\u679ckey\u4e0d\u5b58\u5728 \u00a0 \u00a0 \u53ef\u4ee5\u8fd4\u56deNone \u00a0\u6216 \u00a0\u81ea\u5df1\u6307\u5b9a value：<\/p>\n

      >>> d.get('Thomas')
      \n>>> d.get('Thomas', -1)
      \n-1<\/p>\n

      \u6ce8\u610f：\u8fd4\u56deNone \u00a0Python\u4ea4\u4e92\u73af\u5883 \u4e0d\u663e\u793a \u7ed3\u679c<\/span><\/p>\n

      pop(key) \u65b9\u6cd5<\/span> \u00a0 \u00a0\u5220\u9664\u4e00\u4e2akey<\/p>\n

      >>> d.pop('Bob')
      \n75
      \n>>> d
      \n{'Michael': 95, 'Tracy': 85}<\/p>\n

      \u5bf9\u5e94\u7684 value \u4e5f\u4f1a\u4ece dict \u4e2d\u5220\u9664<\/span><\/p>\n

      list \u548c dict\u00a0\u6bd4\u8f83<\/h5>\n

      dict<\/p>\n

    • \u67e5\u627e\u548c\u63d2\u5165\u7684\u901f\u5ea6\u6781\u5feb \u00a0 \u4e0d\u4f1a\u968f\u7740key\u7684\u589e\u52a0\u800c\u53d8\u6162<\/li>\n
    • \u9700\u8981\u5360\u7528\u5927\u91cf\u7684\u5185\u5b58 \u00a0 \u5185\u5b58\u6d6a\u8d39\u591a<\/li>\n

      dict\u7684key\u5fc5\u987b\u662f\u4e0d\u53ef\u53d8\u5bf9\u8c61<\/span><\/p>\n

      list<\/p>\n

    • \u67e5\u627e\u548c\u63d2\u5165\u7684\u65f6\u95f4\u968f\u7740\u5143\u7d20\u7684\u589e\u52a0\u800c\u589e\u52a0<\/li>\n
    • \u5360\u7528\u7a7a\u95f4\u5c0f \u00a0\u6d6a\u8d39\u5185\u5b58\u5f88\u5c11<\/li>\n

      set<\/h4>\n

      set \u548c dict \u7c7b\u4f3c \u00a0 \u662f\u4e00\u7ec4key\u7684\u96c6\u5408 \u00a0 \u4e0d\u5b58\u50a8value<\/p>\n

      key \u4e0d\u80fd\u91cd\u590d \u00a0 \u5728 set \u4e2d \u6ca1\u6709\u91cd\u590d\u7684 key<\/p>\n

      >>> s = {1, 2, 3}
      \n>>> s
      \n{1, 2, 3}<\/p>\n

      >>> s = set([1, 2, 3])
      \n>>> s
      \n{1, 2, 3}<\/p>\n

      >>> s = {1, 1, 2, 2, 3, 3}
      \n>>> s
      \n{1, 2, 3}<\/p>\n

      add(key) \u00a0\u6dfb\u52a0 \u5143\u7d20 \u53ef\u91cd\u590d \u6dfb\u52a0(\u65e0\u6548\u679c)<\/h5>\n

      >>> s.add(4)
      \n>>> s
      \n{1, 2, 3, 4}
      \n>>> s.add(4)
      \n>>> s
      \n{1, 2, 3, 4}<\/p>\n

      remove(key) \u00a0\u5220\u9664 \u5143\u7d20<\/h5>\n

      >>> s.remove(4)
      \n>>> s
      \n{1, 2, 3}<\/p>\n

      \u4ea4\u96c6 \u00a0 \u00a0\u5e76\u96c6<\/p>\n

      >>> s1 = {1, 2, 3}
      \n>>> s2 = {2, 3, 4}
      \n>>> s1 & s2
      \n{2, 3}
      \n>>> s1 | s2
      \n{1, 2, 3, 4}<\/p>\n

      set \u548c dict \u6bd4\u8f83<\/h5>\n

      \u552f\u4e00\u533a\u522b\u4ec5\u5728\u4e8e \u6ca1\u6709 \u5b58\u50a8\u5bf9\u5e94\u7684value \u00a0<\/p>\n

      set\u539f\u7406 \u548c dict \u4e00\u6837 \u00a0 \u00a0 \u4e0d\u53ef\u4ee5\u653e\u5165\u53ef\u53d8\u5bf9\u8c61 \u00a0\u56e0\u4e3a\u65e0\u6cd5\u5224\u65ad\u4e24\u4e2a\u53ef\u53d8\u5bf9\u8c61\u662f\u5426\u76f8\u7b49\u00a0<\/p>\n

      \u4e0d\u53ef\u53d8\u5bf9\u8c61<\/h4>\n

      list \u53ef\u53d8\u5bf9\u8c61 \u00a0 \u00a0 \u00a0 \u00a0 str \u4e0d\u53d8\u5bf9\u8c61<\/p>\n

      >>> a = 'abc'
      \n>>> a.replace('a', 'A')
      \n'Abc'
      \n>>> a
      \n'abc'<\/p>\n

      >>> a = ['c', 'b', 'a']
      \n>>> a.sort()
      \n>>> a
      \n['a', 'b', 'c']<\/p>\n

      replace() \u00a0\u65b9\u6cd5<\/h5>\n

      >>> a = 'abc'
      \n>>> b = a.replace('a', 'A')
      \n>>> b
      \n'Abc'
      \n>>> a
      \n'abc'<\/p>\n

      a\u00a0\u662f \u53d8\u91cf \u00a0 \u00a0 'abc'\u662f \u5b57\u7b26\u4e32\u5bf9\u8c61<\/span><\/p>\n

      a —> 'abc'<\/font><\/p>\n

      a.replace('a', 'A') \u8c03\u7528 \u65b9\u6cd5replace\u00a0\u662f\u4f5c\u7528\u5728 \u5b57\u7b26\u4e32\u5bf9\u8c61'abc'\u00a0\u4e0a\u00a0\u6ca1\u6709\u6539\u53d8\u5b57\u7b26\u4e32'abc'\u7684\u5185\u5bb9<\/p>\n

      replace\u65b9\u6cd5 \u00a0\u521b\u5efa \u4e00\u4e2a\u65b0 \u5b57\u7b26\u4e32'Abc'\u00a0\u5e76 \u8fd4\u56de \u00a0<\/p>\n

      a —> 'abc'<\/p>\n

      b—-> 'Abc'<\/p>\n

      \u4e0d\u53ef\u53d8\u5bf9\u8c61 \u8c03\u7528\u81ea\u8eab\u65b9\u6cd5 \u4e0d\u4f1a\u4fee\u6539 \u539f\u5bf9\u8c61 \u800c\u662f\u8fd4\u56de\u65b0\u5bf9\u8c61 \u539f\u5bf9\u8c61\u59cb\u7ec8\u4fdd\u6301\u4e0d\u53d8<\/p>\n","protected":false},"excerpt":{"rendered":"

      Python\u7a0b\u5e8fPython\u4ea4\u4e92\u6a21\u5f0f\u6572\u4e0b\u547d\u4ee4：python3 \u63d0\u793a\u7b26：>>> \u8f93\u5165exit() \u5e76\u56de\u8f66 \u9000\u51fa python\u4ea4\u4e92\u6a21\u5f0f \u56de\u5230 \u547d\u4ee4\u884c\u6a21\u5f0f.py \u6587\u4ef6 \u53ea\u80fd\u5728 \u547d\u4ee4\u884c\u6a21\u5f0f python3 hello.py —-> \u8def\u5f84\u5728 Python \u4e2d\u547d\u4ee4\u884c\u6a21\u5f0f\u548cPython\u4ea4\u4e92\u6a21\u5f0fPython\u4ea4\u4e92\u5f0f\u73af\u5883\u4e0b\u8f93\u51fa>>> print(hello,world,relaxing atmosphere,working atmosphere)
      \n# hel<\/p>\n","protected":false},"author":2,"featured_media":93830,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190],"topic":[],"class_list":["post-93847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-python","tag-190"],"yoast_head":"\nPython \u57fa\u7840\u77e5\u8bc6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/93847.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python \u57fa\u7840\u77e5\u8bc6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Python\u7a0b\u5e8fPython\u4ea4\u4e92\u6a21\u5f0f\u6572\u4e0b\u547d\u4ee4：python3 \u63d0\u793a\u7b26：>>> \u8f93\u5165exit() \u5e76\u56de\u8f66 \u9000\u51fa python\u4ea4\u4e92\u6a21\u5f0f \u56de\u5230 \u547d\u4ee4\u884c\u6a21\u5f0f.py \u6587\u4ef6 \u53ea\u80fd\u5728 \u547d\u4ee4\u884c\u6a21\u5f0f python3 hello.py ----> \u8def\u5f84\u5728 Python \u4e2d\u547d\u4ee4\u884c\u6a21\u5f0f\u548cPython\u4ea4\u4e92\u6a21\u5f0fPython\u4ea4\u4e92\u5f0f\u73af\u5883\u4e0b\u8f93\u51fa>>> print(hello,world,relaxing atmosphere,working atmosphere) # hel\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/93847.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-13T02:25:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260813022507-6a7d2b036c009.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/93847.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/93847.html\",\"name\":\"Python \u57fa\u7840\u77e5\u8bc6 - 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\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/93847.html","og_locale":"zh_CN","og_type":"article","og_title":"Python \u57fa\u7840\u77e5\u8bc6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"Python\u7a0b\u5e8fPython\u4ea4\u4e92\u6a21\u5f0f\u6572\u4e0b\u547d\u4ee4：python3 \u63d0\u793a\u7b26：>>> \u8f93\u5165exit() \u5e76\u56de\u8f66 \u9000\u51fa python\u4ea4\u4e92\u6a21\u5f0f \u56de\u5230 \u547d\u4ee4\u884c\u6a21\u5f0f.py \u6587\u4ef6 \u53ea\u80fd\u5728 \u547d\u4ee4\u884c\u6a21\u5f0f python3 hello.py ----> \u8def\u5f84\u5728 Python \u4e2d\u547d\u4ee4\u884c\u6a21\u5f0f\u548cPython\u4ea4\u4e92\u6a21\u5f0fPython\u4ea4\u4e92\u5f0f\u73af\u5883\u4e0b\u8f93\u51fa>>> print(hello,world,relaxing atmosphere,working atmosphere) # hel","og_url":"https:\/\/www.wsisp.com\/helps\/93847.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-08-13T02:25:12+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260813022507-6a7d2b036c009.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"7 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/93847.html","url":"https:\/\/www.wsisp.com\/helps\/93847.html","name":"Python \u57fa\u7840\u77e5\u8bc6 - 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