{"id":196209,"date":"2024-11-13T21:23:58","date_gmt":"2024-11-13T13:23:58","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196209\/"},"modified":"2024-11-13T21:23:59","modified_gmt":"2024-11-13T13:23:59","slug":"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%92%e5%88%97%e5%91%bd%e4%bb%a4esc%ef%bc%8c%e8%bc%95%e9%ac%86%e5%ae%8c%e6%88%90%e6%95%b8%e6%93%9a%e6%9f%a5%e8%a9%a2%e5%92%8c%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196209\/","title":{"rendered":"\u638c\u63e1\u6578\u64da\u5eab\u6392\u5217\u547d\u4ee4ESC\uff0c\u8f15\u9b06\u5b8c\u6210\u6578\u64da\u67e5\u8a62\u548c\u6392\u5e8f (\u6578\u64da\u5eab\u6392\u5e8f\u547d\u4ee4esc)"},"content":{"rendered":"

\u638c\u63e1\u6578\u64da\u5eab\u6392\u5217\u547d\u4ee4ESC\uff0c\u8f15\u9b06\u5b8c\u6210\u6578\u64da\u67e5\u8a62\u548c\u6392\u5e8f<\/h1>\n

\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f01\u696d\u9084\u662f\u500b\u4eba\u7528\u6236\uff0c\u638c\u63e1\u6578\u64da\u5eab\u7684\u57fa\u672c\u64cd\u4f5c\u547d\u4ee4\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u5176\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u67e5\u8a62\u548c\u6392\u5e8f\u547d\u4ee4\u662f\u6700\u5e38\u7528\u7684\u529f\u80fd\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u91cd\u9ede\u4ecb\u7d39\u6578\u64da\u5eab\u4e2d\u7684\u6392\u5217\u547d\u4ee4ESC\uff0c\u5e6b\u52a9\u8b80\u8005\u8f15\u9b06\u5b8c\u6210\u6578\u64da\u67e5\u8a62\u548c\u6392\u5e8f\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u6392\u5217\u547d\u4ee4ESC\uff1f<\/h2>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cESC\uff08Escape\uff09\u547d\u4ee4\u901a\u5e38\u7528\u65bc\u8655\u7406\u7279\u6b8a\u5b57\u7b26\u6216\u63a7\u5236\u5b57\u7b26\u7684\u8f38\u5165\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528ESC\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u66f4\u9748\u6d3b\u5730\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u6392\u5e8f\u3002\u9019\u4e9b\u547d\u4ee4\u901a\u5e38\u8207SQL\u8a9e\u8a00\u7d50\u5408\u4f7f\u7528\uff0c\u80fd\u5920\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002<\/p>\n

\u6578\u64da\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u6578\u64da\u67e5\u8a62\u662f\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u4fe1\u606f\u7684\u904e\u7a0b\u3002\u4f7f\u7528SQL\u8a9e\u8a00\u9032\u884c\u67e5\u8a62\u6642\uff0c\u6700\u5e38\u898b\u7684\u547d\u4ee4\u662fSELECT\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n

SELECT * FROM users WHERE age > 18;<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u5f9e\u540d\u70ba\u201cusers\u201d\u7684\u8868\u4e2d\u6aa2\u7d22\u6240\u6709\u5e74\u9f61\u5927\u65bc18\u6b72\u7684\u7528\u6236\u4fe1\u606f\u3002<\/p>\n
\u6578\u64da\u6392\u5e8f\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n
\u6578\u64da\u6392\u5e8f\u662f\u5c07\u67e5\u8a62\u7d50\u679c\u6309\u7167\u7279\u5b9a\u7684\u9806\u5e8f\u6392\u5217\u3002\u4f7f\u7528ORDER BY\u5b50\u53e5\u53ef\u4ee5\u5be6\u73fe\u9019\u4e00\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u6392\u5e8f\u7684\u793a\u4f8b\uff1a<\/p>\n
SELECT * FROM users ORDER BY age DESC;<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u5f9e\u201cusers\u201d\u8868\u4e2d\u6aa2\u7d22\u6240\u6709\u7528\u6236\u4fe1\u606f\uff0c\u4e26\u6309\u7167\u5e74\u9f61\u5f9e\u5927\u5230\u5c0f\u7684\u9806\u5e8f\u6392\u5217\u3002<\/p>\n
ESC\u547d\u4ee4\u7684\u61c9\u7528<\/h2>\n
\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u5eab\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u53ef\u80fd\u6703\u5f71\u97ff\u67e5\u8a62\u7684\u7d50\u679c\u3002\u9019\u6642\uff0cESC\u547d\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u6b63\u78ba\u8655\u7406\u9019\u4e9b\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u9700\u8981\u67e5\u8a62\u5305\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528ESC\u547d\u4ee4\u4f86\u907f\u514d\u67e5\u8a62\u932f\u8aa4\u3002<\/p>\n
SELECT * FROM products WHERE name LIKE 'A%ESC%';<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0cESC\u547d\u4ee4\u5e6b\u52a9\u7528\u6236\u67e5\u8a62\u6240\u6709\u540d\u7a31\u4ee5\u201cA\u201d\u958b\u982d\u4e26\u5305\u542b\u201cESC\u201d\u7684\u7522\u54c1\u3002<\/p>\n
\u7d50\u5408\u4f7f\u7528\u67e5\u8a62\u548c\u6392\u5e8f\u547d\u4ee4<\/h2>\n
\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u67e5\u8a62\u548c\u6392\u5e8f\u547d\u4ee4\u7d93\u5e38\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u7528\u6236\u80fd\u5920\u7372\u5f97\u66f4\u7cbe\u78ba\u7684\u6578\u64da\u7d50\u679c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7d50\u5408\u67e5\u8a62\u548c\u6392\u5e8f\u7684\u793a\u4f8b\uff1a<\/p>\n
SELECT * FROM orders WHERE status = 'completed' ORDER BY order_date DESC;<\/code><\/pre>\n
\u9019\u689d\u547d\u4ee4\u5c07\u6aa2\u7d22\u6240\u6709\u5df2\u5b8c\u6210\u7684\u8a02\u55ae\uff0c\u4e26\u6309\u7167\u8a02\u55ae\u65e5\u671f\u5f9e\u65b0\u5230\u820a\u7684\u9806\u5e8f\u6392\u5217\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u638c\u63e1\u6578\u64da\u5eab\u7684\u6392\u5217\u547d\u4ee4ESC\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u9032\u884c\u6578\u64da\u67e5\u8a62\u548c\u6392\u5e8f\u3002\u901a\u904e\u9748\u6d3b\u904b\u7528\u9019\u4e9b\u547d\u4ee4\uff0c\u7528\u6236\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u64cd\u4f5c\u7684\u6548\u7387\uff0c\u7372\u5f97\u66f4\u6e96\u78ba\u7684\u7d50\u679c\u3002\u5c0d\u65bc\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9019\u4e9b\u6280\u80fd\u5c24\u70ba\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u638c\u63e1\u6578\u64da\u5eab\u6392\u5217\u547d\u4ee4ESC\uff0c\u8f15\u9b06\u9032\u884c\u6578\u64da\u67e5\u8a62\u8207\u6392\u5e8f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u8b93\u6578\u64da\u8655\u7406\u66f4\u7c21\u55ae\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-196209","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=196209"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196209\/revisions"}],"predecessor-version":[{"id":196210,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196209\/revisions\/196210"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}