<\/p>\n\n\n\n
\u7f16\u7801<\/strong><\/strong><\/p>\n\n\n\n \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cPython 3 \u6e90\u7801\u6587\u4ef6\u4ee5 UTF-8<\/strong> \u7f16\u7801\uff0c\u6240\u6709\u5b57\u7b26\u4e32\u90fd\u662f unicode \u5b57\u7b26\u4e32\u3002 \u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u4e3a\u6e90\u7801\u6587\u4ef6\u6307\u5b9a\u4e0d\u540c\u7684\u7f16\u7801\uff1a<\/p>\n\n\n\n # -*- coding: cp-1252 -*-<\/p>\n\n\n\n \u4e0a\u8ff0\u5b9a\u4e49\u5141\u8bb8\u5728\u6e90\u6587\u4ef6\u4e2d\u4f7f\u7528 Windows-1252 \u5b57\u7b26\u96c6\u4e2d\u7684\u5b57\u7b26\u7f16\u7801\uff0c\u5bf9\u5e94\u9002\u5408\u8bed\u8a00\u4e3a\u4fdd\u52a0\u5229\u4e9a\u8bed\u3001\u767d\u7f57\u65af\u8bed\u3001\u9a6c\u5176\u987f\u8bed\u3001\u4fc4\u8bed\u3001\u585e\u5c14\u7ef4\u4e9a\u8bed\u3002<\/p>\n\n\n\n \u6807\u8bc6\u7b26<\/strong><\/strong><\/p>\n\n\n\n \u5728 Python 3 \u4e2d\uff0c\u53ef\u4ee5\u7528\u4e2d\u6587\u4f5c\u4e3a\u53d8\u91cf\u540d\uff0c\u975e ASCII \u6807\u8bc6\u7b26\u4e5f\u662f\u5141\u8bb8\u7684\u4e86\u3002<\/p>\n\n\n\n python\u4fdd\u7559\u5b57<\/strong><\/strong><\/p>\n\n\n\n \u4fdd\u7559\u5b57\u5373\u5173\u952e\u5b57\uff0c\u6211\u4eec\u4e0d\u80fd\u628a\u5b83\u4eec\u7528\u4f5c\u4efb\u4f55\u6807\u8bc6\u7b26\u540d\u79f0\u3002Python \u7684\u6807\u51c6\u5e93\u63d0\u4f9b\u4e86\u4e00\u4e2a keyword \u6a21\u5757\uff0c\u53ef\u4ee5\u8f93\u51fa\u5f53\u524d\u7248\u672c\u7684\u6240\u6709\u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n >>> import keyword<\/p>\n\n\n\n >>> keyword.kwlist<\/p>\n\n\n\n [‘False’, ‘None’, ‘True’, ‘and’, ‘as’, ‘assert’, ‘break’, ‘class’, ‘continue’, ‘def’, ‘del’, ‘elif’, ‘else’, ‘except’, ‘finally’, ‘for’, ‘from’, ‘global’, ‘if’, ‘import’, ‘in’, ‘is’, ‘lambda’, ‘nonlocal’, ‘not’, ‘or’, ‘pass’, ‘raise’, ‘return’, ‘try’, ‘while’, ‘with’, ‘yield’]<\/p>\n\n\n\n \u6ce8\u91ca<\/strong><\/strong><\/p>\n\n\n\n Python\u4e2d\u5355\u884c\u6ce8\u91ca\u4ee5 #<\/strong> \u5f00\u5934\uff0c\u5b9e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 # \u7b2c\u4e00\u4e2a\u6ce8\u91ca print (“Hello, Python!”) # \u7b2c\u4e8c\u4e2a\u6ce8\u91ca<\/p>\n\n\n\n \u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n Hello, Python!<\/p>\n\n\n\n \u591a\u884c\u6ce8\u91ca\u53ef\u4ee5\u7528\u591a\u4e2a #<\/strong> \u53f7\uff0c\u8fd8\u6709 ”’<\/strong> \u548c “””<\/strong>\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 # \u7b2c\u4e00\u4e2a\u6ce8\u91ca # \u7b2c\u4e8c\u4e2a\u6ce8\u91ca ”’ \u7b2c\u4e09\u6ce8\u91ca \u7b2c\u56db\u6ce8\u91ca ”’ “”” \u7b2c\u4e94\u6ce8\u91ca \u7b2c\u516d\u6ce8\u91ca “”” print (“Hello, Python!”)<\/p>\n\n\n\n \u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n Hello, Python!<\/p>\n\n\n\n \u884c\u4e0e\u7f29\u8fdb<\/strong><\/strong><\/p>\n\n\n\n python\u6700\u5177\u7279\u8272\u7684\u5c31\u662f\u4f7f\u7528\u7f29\u8fdb\u6765\u8868\u793a\u4ee3\u7801\u5757\uff0c\u4e0d\u9700\u8981\u4f7f\u7528\u5927\u62ec\u53f7 {}<\/strong> \u3002<\/p>\n\n\n\n \u7f29\u8fdb\u7684\u7a7a\u683c\u6570\u662f\u53ef\u53d8\u7684\uff0c\u4f46\u662f\u540c\u4e00\u4e2a\u4ee3\u7801\u5757\u7684\u8bed\u53e5\u5fc5\u987b\u5305\u542b\u76f8\u540c\u7684\u7f29\u8fdb\u7a7a\u683c\u6570\u3002\u5b9e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n if True: print (“True”) else: print (“False”)<\/p>\n\n\n\n \u4ee5\u4e0b\u4ee3\u7801\u6700\u540e\u4e00\u884c\u8bed\u53e5\u7f29\u8fdb\u6570\u7684\u7a7a\u683c\u6570\u4e0d\u4e00\u81f4\uff0c\u4f1a\u5bfc\u81f4\u8fd0\u884c\u9519\u8bef\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b<\/strong><\/strong><\/p>\n\n\n\n if<\/strong> True: \u4ee5\u4e0a\u7a0b\u5e8f\u7531\u4e8e\u7f29\u8fdb\u4e0d\u4e00\u81f4\uff0c\u6267\u884c\u540e\u4f1a\u51fa\u73b0\u7c7b\u4f3c\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n\n\n\n File “test.py”, line 6<\/p>\n\n\n\n print (“False”) # \u7f29\u8fdb\u4e0d\u4e00\u81f4\uff0c\u4f1a\u5bfc\u81f4\u8fd0\u884c\u9519\u8bef<\/p>\n\n\n\n ^<\/p>\n\n\n\n IndentationError: unindent does not match any outer indentation level<\/p>\n\n\n\n \u591a\u884c\u8bed\u53e5<\/strong><\/strong><\/p>\n\n\n\n Python \u901a\u5e38\u662f\u4e00\u884c\u5199\u5b8c\u4e00\u6761\u8bed\u53e5\uff0c\u4f46\u5982\u679c\u8bed\u53e5\u5f88\u957f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u53cd\u659c\u6760 \\<\/strong> \u6765\u5b9e\u73b0\u591a\u884c\u8bed\u53e5\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n total = item_one + \\<\/p>\n\n\n\n item_two + \\<\/p>\n\n\n\n item_three<\/p>\n\n\n\n \u5728 [], {}, \u6216 () \u4e2d\u7684\u591a\u884c\u8bed\u53e5\uff0c\u4e0d\u9700\u8981\u4f7f\u7528\u53cd\u659c\u6760 \\<\/strong>\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n total = [‘item_one’, ‘item_two’, ‘item_three’,<\/p>\n\n\n\n ‘item_four’, ‘item_five’]<\/p>\n\n\n\n \u6570\u5b57(Number)\u7c7b\u578b<\/strong><\/strong><\/p>\n\n\n\n python\u4e2d\u6570\u5b57\u6709\u56db\u79cd\u7c7b\u578b\uff1a\u6574\u6570\u3001\u5e03\u5c14\u578b\u3001\u6d6e\u70b9\u6570\u548c\u590d\u6570\u3002<\/p>\n\n\n\n \u5b57\u7b26\u4e32(String)<\/strong><\/strong><\/p>\n\n\n\n word = ‘\u5b57\u7b26\u4e32’<\/p>\n\n\n\n sentence = “\u8fd9\u662f\u4e00\u4e2a\u53e5\u5b50\u3002”<\/p>\n\n\n\n paragraph = “””\u8fd9\u662f\u4e00\u4e2a\u6bb5\u843d\uff0c<\/p>\n\n\n\n \u53ef\u4ee5\u7531\u591a\u884c\u7ec4\u6210”””<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 <\/p>\n\n\n\n str=’123456789′<\/p>\n\n\n\n print(str) # \u8f93\u51fa\u5b57\u7b26\u4e32 <\/p>\n\n\n\n print(str[0:-1]) # \u8f93\u51fa\u7b2c\u4e00\u4e2a\u5230\u5012\u6570\u7b2c\u4e8c\u4e2a\u7684\u6240\u6709\u5b57\u7b26 <\/p>\n\n\n\n print(str[0]) # \u8f93\u51fa\u5b57\u7b26\u4e32\u7b2c\u4e00\u4e2a\u5b57\u7b26 <\/p>\n\n\n\n print(str[2:5]) # \u8f93\u51fa\u4ece\u7b2c\u4e09\u4e2a\u5f00\u59cb\u5230\u7b2c\u4e94\u4e2a\u7684\u5b57\u7b26 <\/p>\n\n\n\n print(str[2:]) # \u8f93\u51fa\u4ece\u7b2c\u4e09\u4e2a\u5f00\u59cb\u540e\u7684\u6240\u6709\u5b57\u7b26 <\/p>\n\n\n\n print(str[1:5:2]) # \u8f93\u51fa\u4ece\u7b2c\u4e8c\u4e2a\u5f00\u59cb\u5230\u7b2c\u4e94\u4e2a\u4e14\u6bcf\u9694\u4e00\u4e2a\u7684\u5b57\u7b26\uff08\u6b65\u957f\u4e3a2\uff09 <\/p>\n\n\n\n print(str * 2) # \u8f93\u51fa\u5b57\u7b26\u4e32\u4e24\u6b21 <\/p>\n\n\n\n print(str + ‘\u4f60\u597d’) # \u8fde\u63a5\u5b57\u7b26\u4e32 <\/p>\n\n\n\n print(‘——————————‘) <\/p>\n\n\n\n print(‘hello\\nrunoob’) # \u4f7f\u7528\u53cd\u659c\u6760(\\)+n\u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26 <\/p>\n\n\n\n print(r’hello\\nrunoob’) # \u5728\u5b57\u7b26\u4e32\u524d\u9762\u6dfb\u52a0\u4e00\u4e2a r\uff0c\u8868\u793a\u539f\u59cb\u5b57\u7b26\u4e32\uff0c\u4e0d\u4f1a\u53d1\u751f\u8f6c\u4e49<\/p>\n\n\n\n \u8fd9\u91cc\u7684 r \u6307 raw\uff0c\u5373 raw string\uff0c\u4f1a\u81ea\u52a8\u5c06\u53cd\u659c\u6760\u8f6c\u4e49\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n >>> print(‘\\n’) # \u8f93\u51fa\u7a7a\u884c<\/p>\n\n\n\n >>> print(r’\\n’) # \u8f93\u51fa \\n<\/p>\n\n\n\n \\n<\/p>\n\n\n\n >>><\/p>\n\n\n\n \u4ee5\u4e0a\u5b9e\u4f8b\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n\n\n\n 123456789<\/p>\n\n\n\n 12345678<\/p>\n\n\n\n 1<\/p>\n\n\n\n 345<\/p>\n\n\n\n 3456789<\/p>\n\n\n\n 24<\/p>\n\n\n\n 123456789123456789<\/p>\n\n\n\n 123456789\u4f60\u597d<\/p>\n\n\n\n ——————————<\/p>\n\n\n\n hello<\/p>\n\n\n\n runoob<\/p>\n\n\n\n hello\\nrunoob<\/p>\n\n\n\n \u7a7a\u884c<\/strong><\/strong><\/p>\n\n\n\n \u51fd\u6570\u4e4b\u95f4\u6216\u7c7b\u7684\u65b9\u6cd5\u4e4b\u95f4\u7528\u7a7a\u884c\u5206\u9694\uff0c\u8868\u793a\u4e00\u6bb5\u65b0\u7684\u4ee3\u7801\u7684\u5f00\u59cb\u3002\u7c7b\u548c\u51fd\u6570\u5165\u53e3\u4e4b\u95f4\u4e5f\u7528\u4e00\u884c\u7a7a\u884c\u5206\u9694\uff0c\u4ee5\u7a81\u51fa\u51fd\u6570\u5165\u53e3\u7684\u5f00\u59cb\u3002<\/p>\n\n\n\n \u7a7a\u884c\u4e0e\u4ee3\u7801\u7f29\u8fdb\u4e0d\u540c\uff0c\u7a7a\u884c\u5e76\u4e0d\u662f Python \u8bed\u6cd5\u7684\u4e00\u90e8\u5206\u3002\u4e66\u5199\u65f6\u4e0d\u63d2\u5165\u7a7a\u884c\uff0cPython \u89e3\u91ca\u5668\u8fd0\u884c\u4e5f\u4e0d\u4f1a\u51fa\u9519\u3002\u4f46\u662f\u7a7a\u884c\u7684\u4f5c\u7528\u5728\u4e8e\u5206\u9694\u4e24\u6bb5\u4e0d\u540c\u529f\u80fd\u6216\u542b\u4e49\u7684\u4ee3\u7801\uff0c\u4fbf\u4e8e\u65e5\u540e\u4ee3\u7801\u7684\u7ef4\u62a4\u6216\u91cd\u6784\u3002<\/p>\n\n\n\n \u8bb0\u4f4f\uff1a<\/strong>\u7a7a\u884c\u4e5f\u662f\u7a0b\u5e8f\u4ee3\u7801\u7684\u4e00\u90e8\u5206\u3002<\/p>\n\n\n\n \u7b49\u5f85\u7528\u6237\u8f93\u5165<\/strong><\/strong><\/p>\n\n\n\n \u6267\u884c\u4e0b\u9762\u7684\u7a0b\u5e8f\u5728\u6309\u56de\u8f66\u952e\u540e\u5c31\u4f1a\u7b49\u5f85\u7528\u6237\u8f93\u5165\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 <\/p>\n\n\n\n input(“\\n\\n\u6309\u4e0b enter \u952e\u540e\u9000\u51fa\u3002”)<\/p>\n\n\n\n \u4ee5\u4e0a\u4ee3\u7801\u4e2d \uff0c\\n\\n<\/strong> \u5728\u7ed3\u679c\u8f93\u51fa\u524d\u4f1a\u8f93\u51fa\u4e24\u4e2a\u65b0\u7684\u7a7a\u884c\u3002\u4e00\u65e6\u7528\u6237\u6309\u4e0b enter<\/strong> \u952e\u65f6\uff0c\u7a0b\u5e8f\u5c06\u9000\u51fa\u3002<\/p>\n\n\n\n \u540c\u4e00\u884c\u663e\u793a\u591a\u6761\u8bed\u53e5<\/strong><\/strong><\/p>\n\n\n\n Python \u53ef\u4ee5\u5728\u540c\u4e00\u884c\u4e2d\u4f7f\u7528\u591a\u6761\u8bed\u53e5\uff0c\u8bed\u53e5\u4e4b\u95f4\u4f7f\u7528\u5206\u53f7 ;<\/strong> \u5206\u5272\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5b9e\u4f8b\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 <\/p>\n\n\n\n import sys;<\/p>\n\n\n\n x = ‘runoob’;<\/p>\n\n\n\n sys.stdout.write(x + ‘\\n’)<\/p>\n\n\n\n \u4f7f\u7528\u811a\u672c\u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n runoob<\/p>\n\n\n\n \u4f7f\u7528\u4ea4\u4e92\u5f0f\u547d\u4ee4\u884c\u6267\u884c\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n >>> import sys; x = ‘runoob’; sys.stdout.write(x + ‘\\n’)<\/p>\n\n\n\n runoob<\/p>\n\n\n\n 7<\/p>\n\n\n\n \u6b64\u5904\u7684 7 \u8868\u793a\u5b57\u7b26\u6570\uff0crunoob<\/strong> \u6709 6 \u4e2a\u5b57\u7b26\uff0c\\n<\/strong> \u8868\u793a\u4e00\u4e2a\u5b57\u7b26\uff0c\u52a0\u8d77\u6765 7<\/strong> \u4e2a\u5b57\u7b26\u3002<\/p>\n\n\n\n >>> import sys<\/p>\n\n\n\n >>> sys.stdout.write(” hi “) # hi \u524d\u540e\u5404\u6709 1 \u4e2a\u7a7a\u683c<\/p>\n\n\n\n hi 4<\/p>\n\n\n\n \u591a\u4e2a\u8bed\u53e5\u6784\u6210\u4ee3\u7801\u7ec4<\/strong><\/strong><\/p>\n\n\n\n \u7f29\u8fdb\u76f8\u540c\u7684\u4e00\u7ec4\u8bed\u53e5\u6784\u6210\u4e00\u4e2a\u4ee3\u7801\u5757\uff0c\u6211\u4eec\u79f0\u4e4b\u4ee3\u7801\u7ec4\u3002<\/p>\n\n\n\n \u50cfif\u3001while\u3001def\u548cclass\u8fd9\u6837\u7684\u590d\u5408\u8bed\u53e5\uff0c\u9996\u884c\u4ee5\u5173\u952e\u5b57\u5f00\u59cb\uff0c\u4ee5\u5192\u53f7( : )\u7ed3\u675f\uff0c\u8be5\u884c\u4e4b\u540e\u7684\u4e00\u884c\u6216\u591a\u884c\u4ee3\u7801\u6784\u6210\u4ee3\u7801\u7ec4\u3002<\/p>\n\n\n\n \u6211\u4eec\u5c06\u9996\u884c\u53ca\u540e\u9762\u7684\u4ee3\u7801\u7ec4\u79f0\u4e3a\u4e00\u4e2a\u5b50\u53e5(clause)\u3002<\/p>\n\n\n\n \u5982\u4e0b\u5b9e\u4f8b\uff1a<\/p>\n\n\n\n if expression : <\/p>\n\n\n\n suite<\/p>\n\n\n\n elif expression : <\/p>\n\n\n\n suite<\/p>\n\n\n\n else : <\/p>\n\n\n\n suite<\/p>\n\n\n\n print \u8f93\u51fa<\/strong><\/strong><\/p>\n\n\n\n print<\/strong> \u9ed8\u8ba4\u8f93\u51fa\u662f\u6362\u884c\u7684\uff0c\u5982\u679c\u8981\u5b9e\u73b0\u4e0d\u6362\u884c\u9700\u8981\u5728\u53d8\u91cf\u672b\u5c3e\u52a0\u4e0a end=””<\/strong>\uff1a<\/p>\n\n\n\n \u5b9e\u4f8b(Python 3.0+)<\/strong><\/strong><\/p>\n\n\n\n #!\/usr\/bin\/python3 <\/p>\n\n\n\n x=”a” <\/p>\n\n\n\n y=”b” <\/p>\n\n\n\n # \u6362\u884c\u8f93\u51fa <\/p>\n\n\n\n print( x ) <\/p>\n\n\n\n print( y ) <\/p>\n\n\n\n print(‘———‘) <\/p>\n\n\n\n # \u4e0d\u6362\u884c\u8f93\u51fa <\/p>\n\n\n\n print( x, end=” ” ) <\/p>\n\n\n\n print( y, end=” ” ) <\/p>\n\n\n\n print()<\/p>\n\n\n\n \u4ee5\u4e0a\u5b9e\u4f8b\u6267\u884c\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n a<\/p>\n\n\n\n b<\/p>\n\n\n\n ———<\/p>\n\n\n\n a b<\/p>\n\n\n\n
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print<\/strong> (“Answer”)
print<\/strong> (“True”)
else<\/strong>:
print<\/strong> (“Answer”)
print<\/strong> (“False”) # \u7f29\u8fdb\u4e0d\u4e00\u81f4\uff0c\u4f1a\u5bfc\u81f4\u8fd0\u884c\u9519\u8bef<\/p>\n\n\n\n
\n\n\n\n
\n\n\n\n\n
\n\n\n\n\n
\n\n\n\n
\n\n\n\n
\n\n\n\n
\n\n\n\n
\n\n\n\n