{"id":1488,"date":"2014-10-17T16:08:27","date_gmt":"2014-10-17T16:08:27","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=1488"},"modified":"2014-10-17T16:08:27","modified_gmt":"2014-10-17T16:08:27","slug":"python%e7%9a%84%e4%b8%80%e4%ba%9b%e5%b0%8f%e7%9f%a5%e8%af%86%e7%82%b9","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/1488.html","title":{"rendered":"Python\u7684\u4e00\u4e9b\u5c0f\u77e5\u8bc6\u70b9"},"content":{"rendered":"

Python<\/strong>\u751f\u6210<\/strong>GUID<\/strong><\/p>\n

>>> import uuid\n>>> uuid.uuid1()\nUUID('5a35a426-f7ce-11dd-abd2-0017f227cfc7')<\/pre>\n
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#Python<\/strong>\u4e2d\u7684<\/strong>string<\/strong>\u5bf9\u8c61\u6709\u51e0\u4e2a\u5e38\u7528\u7684\u65b9\u6cd5\u7528\u6765\u8f93\u51fa\u5404\u79cd\u4e0d\u540c\u7684\u5b57\u7b26\uff1a<\/strong><\/p>\n
string.ascii_letters\u00a0\u00a0\u00a0 #\u8f93\u51faascii\u7801\u7684\u6240\u6709\u5b57\u7b26\nstring.digits\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #\u8f93\u51fa '0123456789'.\nstring.punctuation\u00a0\u00a0\u00a0\u00a0\u00a0 #ascii\u4e2d\u7684\u6807\u70b9\u7b26\u53f7\nprint string.ascii_letters\nprint string.digits\nprint string.punctuation\n\n#\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a\nabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n0123456789\n!\"#$%&'()*+,-.\/:;<=>?@[]^_`{|}~<\/pre>\n
#<\/strong>\u4e0b\u9762\u7684\u4ee3\u7801\u7528\u4e8e\u751f\u6210\u968f\u673a\u5bc6\u7801\uff1a<\/strong><\/p>\n
import string\nfrom random import *\ncharacters = string.ascii_letters + string.punctuation + string.digits\npassword = \"\".join(choice(characters) for x in range(randint(8, 16)))\nprint password<\/pre>\n
\u7528<\/strong>Python<\/strong>\u5224\u65ad\u53d8\u91cf\u7c7b\u578b<\/strong><\/p>\n
python\u5224\u65ad\u53d8\u91cf\u7c7b\u578b\u65f6\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u63a8\u8350\u4f7f\u7528type()\u65b9\u6cd5<\/a>\uff1f<\/p>\n
\u5b9e\u9645\u4e0a\u8fd8\u6709\u4e00\u79cd\u65b9\u6cd5\u662f\u7528isinstance\u3002\u6bd4\u5982\uff1a<\/p>\n
a = 111\nisinstance(a, int)\nTrue<\/pre>\n
isinstance \u548c type\u7684\u533a\u522b\u5728\u4e8e\uff1a<\/p>\n
class A:\n    pass\nclass B(A):\n    pass\n\nisinstance(A(), A)\u00a0 # returns True\ntype(A()) == A\u00a0\u00a0\u00a0\u00a0\u00a0 # returns True\nisinstance(B(), A)\u00a0\u00a0\u00a0 # returns True\ntype(B()) == A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # returns False<\/pre>\n
\u533a\u522b\u5c31\u662f \u5bf9\u4e8esubclass\u4e4b\u7c7b\u7684 type \u5c31\u4e0d\u7701\u4e8b\u4e86\u3002<\/p>\n
\u53c2\u8003\u94fe\u63a5<\/strong>\uff1apython\u5224\u65ad\u53d8\u91cf\u7c7b\u578b\u65f6\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u63a8\u8350\u4f7f\u7528type()\u65b9\u6cd5 – SegmentFault http:\/\/segmentfault.com\/q\/1010000000127305<\/a><\/p>\n
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