{"id":175647,"date":"2024-11-08T07:37:18","date_gmt":"2024-11-07T23:37:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175647\/"},"modified":"2024-11-08T07:37:18","modified_gmt":"2024-11-07T23:37:18","slug":"%e5%a6%82%e4%bd%95%e6%b6%88%e9%99%a4%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%96%e5%88%b0%e7%9a%84%e7%a9%ba%e6%a0%bc%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%96%e5%88%b0%e7%9a%84%e6%95%b8%e6%93%9a%e6%9c%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175647\/","title":{"rendered":"\u5982\u4f55\u6d88\u9664\u6578\u64da\u5eab\u53d6\u5230\u7684\u7a7a\u683c\uff1f (\u6578\u64da\u5eab\u53d6\u5230\u7684\u6578\u64da\u6709\u7a7a\u683c)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e6%b6%88%e9%99%a4%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%96%e5%88%b0%e7%9a%84%e7%a9%ba%e6%a0%bc%ef%bc%9f-VNlUTNcqoo\">\u5982\u4f55\u6d88\u9664\u6578\u64da\u5eab\u53d6\u5230\u7684\u7a7a\u683c\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6578\u64da\u7684\u6574\u6f54\u6027\u548c\u4e00\u81f4\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7576\u5f9e\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\u6642\uff0c\u7d93\u5e38\u6703\u9047\u5230\u6578\u64da\u4e2d\u5305\u542b\u591a\u9918\u7684\u7a7a\u683c\u554f\u984c\u3002\u9019\u4e9b\u7a7a\u683c\u53ef\u80fd\u4f86\u81ea\u7528\u6236\u8f38\u5165\u3001\u6578\u64da\u5c0e\u5165\u904e\u7a0b\u6216\u5176\u4ed6\u539f\u56e0\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u6d88\u9664\u6578\u64da\u5eab\u53d6\u5230\u7684\u7a7a\u683c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%95%b8%e6%93%9a%e4%b8%ad%e6%9c%83%e5%87%ba%e7%8f%be%e7%a9%ba%e6%a0%bc%ef%bc%9f-VNlUTNcqoo\">\u70ba\u4ec0\u9ebc\u6578\u64da\u4e2d\u6703\u51fa\u73fe\u7a7a\u683c\uff1f<\/h2>\n<p>\u6578\u64da\u4e2d\u51fa\u73fe\u7a7a\u683c\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u7528\u6236\u8f38\u5165\uff1a<\/strong>\u7528\u6236\u5728\u586b\u5beb\u8868\u55ae\u6642\uff0c\u53ef\u80fd\u6703\u4e0d\u5c0f\u5fc3\u5728\u6587\u672c\u6846\u4e2d\u6dfb\u52a0\u591a\u9918\u7684\u7a7a\u683c\u3002<\/li>\n<li><strong>\u6578\u64da\u5c0e\u5165\uff1a<\/strong>\u5f9e\u5176\u4ed6\u7cfb\u7d71\u6216\u6587\u4ef6\u5c0e\u5165\u6578\u64da\u6642\uff0c\u683c\u5f0f\u4e0d\u4e00\u81f4\u53ef\u80fd\u5c0e\u81f4\u7a7a\u683c\u7684\u51fa\u73fe\u3002<\/li>\n<li><strong>\u6578\u64da\u8655\u7406\uff1a<\/strong>\u5728\u6578\u64da\u8655\u7406\u904e\u7a0b\u4e2d\uff0c\u67d0\u4e9b\u64cd\u4f5c\u53ef\u80fd\u6703\u7121\u610f\u4e2d\u6dfb\u52a0\u7a7a\u683c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%b6%88%e9%99%a4%e7%a9%ba%e6%a0%bc%ef%bc%9f-VNlUTNcqoo\">\u5982\u4f55\u6d88\u9664\u7a7a\u683c\uff1f<\/h2>\n<p>\u6d88\u9664\u6578\u64da\u4e2d\u7684\u7a7a\u683c\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u6cd5\u5be6\u73fe\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6280\u8853\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-sql-%e5%87%bd%e6%95%b8-VNlUTNcqoo\">1. \u4f7f\u7528 SQL \u51fd\u6578<\/h3>\n<p>\u5728 SQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>TRIM()<\/code> \u51fd\u6578\u4f86\u53bb\u9664\u5b57\u7b26\u4e32\u524d\u5f8c\u7684\u7a7a\u683c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT TRIM(column_name) AS trimmed_column\nFROM table_name;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u5f9e <code>table_name<\/code> \u8868\u4e2d\u63d0\u53d6 <code>column_name<\/code> \u5217\u7684\u6578\u64da\uff0c\u4e26\u53bb\u9664\u6bcf\u500b\u503c\u524d\u5f8c\u7684\u7a7a\u683c\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%ad%a3%e5%89%87%e8%a1%a8%e9%81%94%e5%bc%8f-VNlUTNcqoo\">2. \u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f<\/h3>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u6b63\u5247\u8868\u9054\u5f0f\u4f86\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u7a7a\u683c\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 MySQL \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT REGEXP_REPLACE(column_name, '\\s+', '') AS no_spaces\nFROM table_name;<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u5f9e <code>column_name<\/code> \u4e2d\u53bb\u9664\u6240\u6709\u7a7a\u683c\uff0c\u5305\u62ec\u4e2d\u9593\u7684\u7a7a\u683c\u3002<\/p>\n<h3 id=\"3-%e5%9c%a8%e6%87%89%e7%94%a8%e5%b1%a4%e8%99%95%e7%90%86-VNlUTNcqoo\">3. \u5728\u61c9\u7528\u5c64\u8655\u7406<\/h3>\n<p>\u9664\u4e86\u5728\u6578\u64da\u5eab\u5c64\u9762\u8655\u7406\u7a7a\u683c\u5916\uff0c\u9084\u53ef\u4ee5\u5728\u61c9\u7528\u5c64\u9032\u884c\u8655\u7406\u3002\u4f8b\u5982\uff0c\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>trim()<\/code> \u51fd\u6578\uff1a<\/p>\n<pre><code>$trimmed_value = trim($value);<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u5728\u5c07\u6578\u64da\u63d2\u5165\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u5148\u53bb\u9664\u591a\u9918\u7684\u7a7a\u683c\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-VNlUTNcqoo\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u70ba\u4e86\u907f\u514d\u672a\u4f86\u51fa\u73fe\u7a7a\u683c\u554f\u984c\uff0c\u5efa\u8b70\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u5728\u6578\u64da\u8f38\u5165\u6642\u9032\u884c\u9a57\u8b49\uff0c\u78ba\u4fdd\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u5305\u542b\u591a\u9918\u7684\u7a7a\u683c\u3002<\/li>\n<li>\u5728\u6578\u64da\u5c0e\u5165\u904e\u7a0b\u4e2d\uff0c\u4f7f\u7528\u6e05\u7406\u5de5\u5177\u4f86\u8655\u7406\u6578\u64da\uff0c\u53bb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a\u683c\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u6574\u6f54\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-VNlUTNcqoo\">\u7d50\u8ad6<\/h2>\n<p>\u6d88\u9664\u6578\u64da\u5eab\u53d6\u5230\u7684\u7a7a\u683c\u662f\u4e00\u500b\u91cd\u8981\u7684\u6578\u64da\u7ba1\u7406\u4efb\u52d9\u3002\u901a\u904e\u4f7f\u7528 SQL \u51fd\u6578\u3001\u6b63\u5247\u8868\u9054\u5f0f\u4ee5\u53ca\u5728\u61c9\u7528\u5c64\u9032\u884c\u8655\u7406\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u6b64\u5916\uff0c\u9075\u5faa\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u672a\u4f86\u51fa\u73fe\u7a7a\u683c\u7684\u6a5f\u6703\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u6d88\u9664\u6578\u64da\u5eab\u4e2d\u53d6\u5230\u7684\u7a7a\u683c\uff0c\u63d0\u5347\u6578\u64da\u8cea\u91cf\uff0c\u78ba\u4fdd\u6578\u64da\u8655\u7406\u7684\u6e96\u78ba\u6027\u8207\u6548\u7387\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-175647","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175647","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=175647"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175647\/revisions"}],"predecessor-version":[{"id":175648,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175647\/revisions\/175648"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}