{"id":642,"date":"2026-04-22T11:20:58","date_gmt":"2026-04-22T03:20:58","guid":{"rendered":"https:\/\/mitongxue.cn\/?p=642"},"modified":"2026-07-13T13:55:54","modified_gmt":"2026-07-13T05:55:54","slug":"%e5%8f%98%e9%87%8f%e5%90%8d%e4%b8%ba%e4%bb%80%e4%b9%88%e9%83%bd%e4%b8%8d%e8%83%bd%e4%bb%a5%e6%95%b0%e5%ad%97%e5%bc%80%e5%a4%b4","status":"publish","type":"post","link":"https:\/\/mitongxue.cn\/index.php\/2026\/04\/22\/%e5%8f%98%e9%87%8f%e5%90%8d%e4%b8%ba%e4%bb%80%e4%b9%88%e9%83%bd%e4%b8%8d%e8%83%bd%e4%bb%a5%e6%95%b0%e5%ad%97%e5%bc%80%e5%a4%b4\/","title":{"rendered":"\u53d8\u91cf\u540d\u4e3a\u4ec0\u4e48\u90fd\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u7f16\u8bd1\u5668 \/ \u89e3\u91ca\u5668\u65e0\u6cd5\u533a\u5206\u300c\u6570\u5b57\u300d\u548c\u300c\u53d8\u91cf\u540d\u300d\uff0c\u8bed\u6cd5\u6b67\u4e49<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u5047\u8bbe\u5141\u8bb8\u6570\u5b57\u5f00\u5934\u53d8\u91cf\nlet 123abc = 10;\nconsole.log(123abc);\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u89e3\u6790\u5668\u8bfb\u5230 <code>123abc<\/code> \u65f6\uff0c\u7b2c\u4e00\u53cd\u5e94\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>123<\/code> \u662f\u6570\u5b57\u5b57\u9762\u91cf\uff0c\u540e\u9762\u8ddf <code>abc<\/code>\uff0c\u4f1a\u8bc6\u522b\u6210 <strong>123 * abc<\/strong>\uff0c\u76f4\u63a5\u62a5\u8bed\u6cd5\u9519\u8bef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u518d\u770b\u8868\u8fbe\u5f0f\u6b67\u4e49\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>let 5a = 20;\n5a + 3<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f15\u64ce\u5206\u4e0d\u6e05\uff1a\u662f\u53d8\u91cf <code>5a<\/code>\uff0c\u8fd8\u662f <code>5 * a<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8bcd\u6cd5\u5206\u6790\u89c4\u5219\uff08\u6839\u672c\u903b\u8f91\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f16\u7a0b\u8bed\u8a00\u8bcd\u6cd5\u626b\u63cf\u5206\u4e24\u7c7b token\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6570\u5b57\u5e38\u91cf<\/strong>\uff1a\u4ee5 <code>0-9<\/code> \u5f00\u5934\uff0c\u540e\u7eed\u53ea\u80fd\u662f\u6570\u5b57\u3001\u5c0f\u6570\u70b9\u3001\u6307\u6570\u7b26\u53f7\uff1b<\/li>\n\n\n\n<li><strong>\u6807\u8bc6\u7b26\uff08\u53d8\u91cf \/ \u51fd\u6570\u540d\uff09<\/strong>\uff1a\u5fc5\u987b\u4ee5\u5b57\u6bcd\u3001\u4e0b\u5212\u7ebf <code>_<\/code>\u3001\u7f8e\u5143\u7b26 <code>$<\/code> \u5f00\u5934\uff0c\u540e\u9762\u624d\u80fd\u8ddf\u6570\u5b57\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u89c4\u5219\u5f3a\u5236\u5206\u5272\u4e24\u7c7b token\uff0c\u6d88\u9664\u6b67\u4e49\uff0c\u7b80\u5316\u8bed\u6cd5\u89e3\u6790\u5668\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u989d\u5916\u5386\u53f2\u4e0e\u53ef\u8bfb\u6027\u8bbe\u8ba1\u539f\u56e0<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6570\u5b66\u4e60\u60ef<\/strong> \u6570\u5b66\u91cc\u6570\u5b57\u6c38\u8fdc\u5199\u5728\u53d8\u91cf\u524d\u9762\uff1a<code>3x<\/code> \u4ee3\u8868 3 \u00d7 x\uff0c\u8bed\u8a00\u9075\u5faa\u4eba\u7c7b\u9605\u8bfb\u4e60\u60ef\uff1b<\/li>\n\n\n\n<li><strong>\u53ef\u8bfb\u6027\u7ea6\u675f<\/strong> <code>user99<\/code> \u4e00\u773c\u770b\u61c2\uff1a\u7528\u6237\u7f16\u53f7 99\uff1b <code>99user<\/code> \u89c6\u89c9\u6df7\u4e71\uff0c\u4e0d\u5229\u4e8e\u4ee3\u7801\u9605\u8bfb\uff1b<\/li>\n\n\n\n<li><strong>\u6b63\u5219\u5339\u914d\u7b80\u5316<\/strong> \u89e3\u6790\u5668\u5339\u914d\u6807\u8bc6\u7b26\u6b63\u5219\uff1a<code>^[a-zA-Z_$][a-zA-Z0-9_$]*<\/code> \u53ea\u8981\u9996\u5b57\u7b26\u9650\u5b9a\u975e\u6570\u5b57\uff0c\u6b63\u5219\u4e0d\u7528\u590d\u6742\u56de\u6eaf\uff0c\u63d0\u5347\u7f16\u8bd1\u901f\u5ea6\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f16\u8bd1\u5668 \/ 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