{"id":78,"date":"2021-06-18T00:34:18","date_gmt":"2021-06-17T16:34:18","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/python\/?p=78"},"modified":"2021-06-18T19:48:25","modified_gmt":"2021-06-18T11:48:25","slug":"python%e5%ae%b9%e5%99%a8%e5%85%ac%e5%85%b1%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/python\/post-78.html","title":{"rendered":"python\u5bb9\u5668\u516c\u5171\u65b9\u6cd5"},"content":{"rendered":"\n

python\u4e2d\u5bf9\u5bb9\u5668\u7c7b\u6570\u636e\u53d8\u91cf\u63d0\u4f9b\u4e86\u5f88\u5927\u516c\u5171\u65b9\u6cd5<\/p>\n\n\n\n

\u5185\u7f6e\u51fd\u6570<\/strong><\/p>\n\n\n\n

\u51fd\u6570\u540d<\/td>\u63cf\u8ff0<\/td>\u5907\u6ce8<\/td><\/tr>
len(item)<\/td>\u8ba1\u7b97\u5bb9\u5668\u5143\u7d20\u4e2a\u6570<\/td><\/td><\/tr>
del(item)<\/td>\u5220\u9664\u53d8\u91cf<\/td>del\u67092\u79cd\u65b9\u5f0f<\/td><\/tr>
max(item)<\/td>\u8ba1\u7b97\u5bb9\u5668\u5143\u7d20\u6700\u5927\u503c<\/td>\u5982\u679c\u662f\u5b57\u5178, \u4ec5\u6bd4\u8f83key<\/td><\/tr>
min(item)<\/td>\u8ba1\u7b97\u5bb9\u5668\u5143\u7d20\u6700\u5c0f\u503c<\/td>\u5982\u679c\u662f\u5b57\u6bb5, \u4ec5\u6bd4\u8f83key<\/td><\/tr>
cmp(item1,item2)<\/td>\u6bd4\u8f83\u4e24\u4e2a\u503c, -1\u5c0f\u4e8e0\u76f8\u7b491\u5927\u4e8e<\/td>python3.0\u53d6\u6d88\u4e86cmp
\u5b57\u7b26\u4e32\u4ee5ASCII\u5927\u5c0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5207\u7247<\/strong><\/p>\n\n\n\n

\u5207\u7247\u652f\u6301\u7684\u6570\u636e\u7c7b\u578b, \u5305\u62ec (\u5b57\u7b26\u4e32, \u5217\u8868, \u5143\u7ec4)<\/p>\n\n\n\n

\u5207\u7247\u662f\u4f7f\u7528\u7d22\u5f15\u503c\u6765\u9650\u5b9a\u8303\u56f4, \u800c\u5b57\u5178\u662f\u65e0\u5e8f\u96c6\u5408, \u901a\u8fc7\u952e\u503c\u5bf9\u4fdd\u5b58\u6570\u636e<\/p>\n\n\n\n

\u8fd0\u7b97\u7b26<\/strong><\/p>\n\n\n\n

\u8fd0\u7b97\u7b26<\/td>\u8868\u8fbe\u5f0f<\/td>\u7ed3\u679c<\/td>\u63cf\u8ff0<\/td>\u652f\u6301\u7c7b\u578b<\/td><\/tr>
+<\/td>[1,2]+[3,4]<\/td>[1,2,3,4]<\/td>\u5408\u5e76<\/td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4<\/td><\/tr>
*<\/td>[“hi”]*2<\/td>[“hi”,”hi”]<\/td>\u91cd\u590d<\/td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4<\/td><\/tr>
in<\/td>3 in (1,2,3)<\/td>True<\/td>\u662f\u5426\u5b58\u5728<\/td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u5178<\/td><\/tr>
not in<\/td>4 not in(1,2)<\/td>True<\/td>\u662f\u5426\u4e0d\u5728<\/td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u5178<\/td><\/tr>
>
>=
==
<
<=<\/td>		(1,2,3)<(2,3,3)<\/td>True<\/td>\u6bd4\u8f83<\/td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

PS:<\/strong> in \u5728\u5b57\u5178\u4e2d, \u6bd4\u8f83\u7684\u662f key<\/p>\n\n\n\n

\u6b64\u5916, in \u548c not in \u88ab\u79f0\u4e3a\u6210\u5458\u8fd0\u7b97\u7b26<\/em><\/p>\n\n\n\n

\u6210\u5458\u8fd0\u7b97\u7b26<\/strong><\/p>\n\n\n\n

\u6210\u5458\u8fd0\u7b97\u7b26, \u7528\u4e8e \u6d4b\u8bd5<\/em> \u5e8f\u5217\u4e2d\u662f\u5426\u5305\u542b\u6307\u5b9a\u7684\u6210\u5458<\/p>\n\n\n\n

\u8fd0\u7b97\u7b26<\/td>\u63cf\u8ff0<\/td>\u5b9e\u4f8b<\/td><\/tr>
in<\/td>\u5982\u679c\u5b58\u5728, \u5219\u8fd4\u56deTrue<\/td>3 in (1,2,3)<\/td><\/tr>
not in<\/td>\u5982\u679c\u4e0d\u5b58\u5728, \u5219\u8fd4\u56deTrue<\/td>2 not in(1,3)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u5bf9\u4e8e\u5b57\u5178, \u6bd4\u8f83\u7684\u662f key<\/p>\n\n\n\n

\u5b8c\u6574\u7684for\u5faa\u73af<\/h2>\n\n\n\n

\u5728python\u4e2d, \u5b8c\u6574\u7684for\u5faa\u73af\u8bed\u6cd5\u5982\u4e0b:<\/p>\n\n\n\n

for \u53d8\u91cf in \u96c6\u5408:\n    \u5faa\u73af\u4f53\nelse:\n    \u6ca1\u6709\u901a\u8fc7break\u9000\u51fa\u6267\u884c\u7684\u8bed\u53e5<\/code><\/pre>\n\n\n\n
for\u8bed\u53e5\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n
name_list = [{\"name\":\"\u5f20\u4e09\"},{\"name\":\"\u674e\u56db\"}]\nfor name in name_list:\n    if(name[\"name\"] == \"\u738b\u4e94\"):\n        print(\"\u627e\u5230\u4e86,\u738b\u4e94\");\n        break\nelse:\n    print(\"\u6ca1\u6709\u738b\u4e94\")<\/code><\/pre>\n\n\n\n
\u6b64\u5916\uff0c\u5728for, if, \u51fd\u6570\u7b49\u7ed3\u6784\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528pass\u4f5c\u4e3a\u5360\u4f4d\u7b26\uff0c#TODO\u4f5c\u4e3a\u63a5\u4e0b\u6765\u8bb2\u8981\u505a\u7684\u63d0\u793a<\/p>\n","protected":false},"excerpt":{"rendered":"
python\u4e2d\u5bf9\u5bb9\u5668\u7c7b\u6570\u636e\u53d8\u91cf\u63d0\u4f9b\u4e86\u5f88\u5927\u516c\u5171\u65b9\u6cd5 \u5185\u7f6e\u51fd\u6570 \u51fd\u6570\u540d \u63cf\u8ff0 \u5907\u6ce8 len(item) \u8ba1\u7b97\u5bb9\u5668\u5143… \u7ee7\u7eed\u9605\u8bfb python\u5bb9\u5668\u516c\u5171\u65b9\u6cd5<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/78"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/comments?post=78"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/posts\/78\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/media?parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/categories?post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/python\/wp-json\/wp\/v2\/tags?post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}