{"id":1419,"date":"2026-05-11T15:59:55","date_gmt":"2026-05-11T07:59:55","guid":{"rendered":"http:\/\/wordpress.fangt.online\/?p=1419"},"modified":"2026-05-23T15:43:24","modified_gmt":"2026-05-23T07:43:24","slug":"%e4%bd%8d%e8%bf%90%e7%ae%97%e5%88%9d%e6%ad%a5","status":"publish","type":"post","link":"http:\/\/wordpress.fangt.online\/index.php\/2026\/05\/11\/%e4%bd%8d%e8%bf%90%e7%ae%97%e5%88%9d%e6%ad%a5\/","title":{"rendered":"\u4f4d\u8fd0\u7b97\u521d\u6b65"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u4f4d\u8fd0\u7b97\u662f\u6307\u5728<strong>\u4e8c\u8fdb\u5236\u4f4d<\/strong>\u7684\u5c42\u9762\u4e0a\u76f4\u63a5\u5bf9\u6574\u6570\u8fdb\u884c\u64cd\u4f5c\u7684\u8fd0\u7b97\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5728\u8ba1\u7b97\u673a\u4e2d\u4ee5\u4e8c\u8fdb\u5236\uff080\/1\uff09\u5b58\u50a8<\/li>\n\n\n\n<li>\u4f4d\u8fd0\u7b97\u6bd4\u7b97\u672f\u8fd0\u7b97\uff08+\u3001-\u3001*\u3001\/\uff09<strong>\u5feb\u5f97\u591a<\/strong><\/li>\n\n\n\n<li>\u5e38\u7528\u4e8e\uff1a\u6743\u9650\u63a7\u5236\u3001\u72b6\u6001\u538b\u7f29\u3001\u52a0\u5bc6\u3001\u56fe\u5f62\u5904\u7406\u3001\u5e95\u5c42\u4f18\u5316<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u4f4d\u8fd0\u7b97\u7b26\u6982\u5ff5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C++ \u4e2d\u7684 6 \u4e2a\u57fa\u672c\u4f4d\u8fd0\u7b97\u7b26\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u8fd0\u7b97\u7b26<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u540d\u79f0<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u82f1\u6587<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><code>&amp;<\/code><\/td><td>\u6309\u4f4d\u4e0e<\/td><td>AND<\/td><td>\u4e24\u4f4d\u90fd\u4e3a1 \u2192 \u7ed3\u679c\u4e3a1<\/td><\/tr><tr><td><code>|<\/code><\/td><td>\u6309\u4f4d\u6216<\/td><td>OR<\/td><td>\u81f3\u5c11\u4e00\u4f4d\u4e3a1 \u2192 \u7ed3\u679c\u4e3a1<\/td><\/tr><tr><td><code>^<\/code><\/td><td>\u6309\u4f4d\u5f02\u6216<\/td><td>XOR<\/td><td>\u4e24\u4f4d\u4e0d\u540c \u2192 \u7ed3\u679c\u4e3a1<\/td><\/tr><tr><td><code>~<\/code><\/td><td>\u6309\u4f4d\u53d6\u53cd<\/td><td>NOT<\/td><td>0\u53d81\uff0c1\u53d80<\/td><\/tr><tr><td><code>&lt;&lt;<\/code><\/td><td>\u5de6\u79fb<\/td><td>SHL<\/td><td>\u6240\u6709\u4f4d\u5411\u5de6\u79fb\u52a8\uff0c\u53f3\u4fa7\u88650<\/td><\/tr><tr><td><code>&gt;&gt;<\/code><\/td><td>\u53f3\u79fb<\/td><td>SHR<\/td><td>\u6240\u6709\u4f4d\u5411\u53f3\u79fb\u52a8\uff0c\u5de6\u4fa7\u8865\u7b26\u53f7\u4f4d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1a\u4f4d\u8fd0\u7b97\u7b26\u53ea\u80fd\u7528\u4e8e <code>int<\/code>\u3001<code>long<\/code>\u3001<code>short<\/code>\u3001<code>char<\/code> \u7b49<strong>\u6574\u6570\u7c7b\u578b<\/strong><\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u4f4d\u4e0e\uff08&amp;\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219\u8868<\/h3>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">A<\/th><th class=\"has-text-align-left\" data-align=\"left\">B<\/th><th class=\"has-text-align-left\" data-align=\"left\">A &amp; B<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>0<\/td><td>1<\/td><td>0<\/td><\/tr><tr><td>1<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>1<\/td><td>1<\/td><td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5224\u65ad\u5947\u5076\uff1a<code>if (x &amp; 1)<\/code> \u2192 \u5947\u6570<\/li>\n\n\n\n<li>\u53d6\u7279\u5b9a\u4f4d\uff1a<code>x &amp; (1 &lt;&lt; k)<\/code> \u2192 \u5224\u65ad\u7b2ck\u4f4d\u662f\u5426\u4e3a1<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u4f4d\u6216\uff08|\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219\u8868<\/h3>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">A<\/th><th class=\"has-text-align-left\" data-align=\"left\">B<\/th><th class=\"has-text-align-left\" data-align=\"left\">A | B<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>0<\/td><td>1<\/td><td>1<\/td><\/tr><tr><td>1<\/td><td>0<\/td><td>1<\/td><\/tr><tr><td>1<\/td><td>1<\/td><td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8bbe\u7f6e\u7279\u5b9a\u4f4d\u4e3a1\uff1a<code>x | (1 &lt;&lt; k)<\/code><\/li>\n\n\n\n<li>\u6743\u9650\u5408\u5e76\uff1a<code>READ | WRITE | EXECUTE<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u4f4d\u5f02\u6216\uff08^\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219\u8868<\/h3>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">A<\/th><th class=\"has-text-align-left\" data-align=\"left\">B<\/th><th class=\"has-text-align-left\" data-align=\"left\">A ^ B<\/th><\/tr><\/thead><tbody><tr><td>0<\/td><td>0<\/td><td>0<\/td><\/tr><tr><td>0<\/td><td>1<\/td><td>1<\/td><\/tr><tr><td>1<\/td><td>0<\/td><td>1<\/td><\/tr><tr><td>1<\/td><td>1<\/td><td>0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u91cd\u8981\u6027\u8d28<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>a ^ a = 0<\/code>\uff08\u81ea\u5df1\u5f02\u6216\u81ea\u5df1\u5f970\uff09<\/li>\n\n\n\n<li><code>a ^ 0 = a<\/code>\uff08\u4e0e0\u5f02\u6216\u4e0d\u53d8\uff09<\/li>\n\n\n\n<li><code>a ^ b ^ b = a<\/code>\uff08\u4e24\u6b21\u5f02\u6216\u8fd8\u539f\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7ffb\u8f6c\u7279\u5b9a\u4f4d\uff1a<code>x ^ (1 &lt;&lt; k)<\/code><\/li>\n\n\n\n<li>\u4ea4\u6362\u4e24\u6570\uff08\u4e0d\u7528\u4e34\u65f6\u53d8\u91cf\uff09<\/li>\n\n\n\n<li>\u627e\u51fa\u51fa\u73b0\u5947\u6570\u6b21\u7684\u6570<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u4f4d\u975e\uff08~\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>0 \u53d8 1<\/li>\n\n\n\n<li>1 \u53d8 0<\/li>\n\n\n\n<li><strong>\u5305\u62ec\u7b26\u53f7\u4f4d\u4e5f\u4f1a\u53d6\u53cd<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u91cd\u8981\u516c\u5f0f<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">&nbsp;~x = -x - 1<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6e05\u9664\u7279\u5b9a\u4f4d\uff1a<code>x &amp; ~(1 &lt;&lt; k)<\/code><\/li>\n\n\n\n<li>\u83b7\u53d6\u51681\u63a9\u7801\uff1a<code>~0<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u5de6\u79fb\uff08&lt;&lt;\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6240\u6709\u4f4d\u5411\u5de6\u79fb\u52a8<\/li>\n\n\n\n<li>\u53f3\u4fa7\u8865 0<\/li>\n\n\n\n<li>\u5de6\u4fa7\u8d85\u51fa\u7684\u4f4d\u88ab\u4e22\u5f03<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u5b66\u610f\u4e49<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">&nbsp;a &lt;&lt; n = a \u00d7 2\u207f<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5feb\u901f\u4e58\u4ee52\u7684\u5e42<\/li>\n\n\n\n<li>\u6784\u9020\u63a9\u7801\uff1a<code>(1 &lt;&lt; k)<\/code> \u8868\u793a\u7b2ck\u4f4d\u4e3a1<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u53f3\u79fb\uff08&gt;&gt;\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u89c4\u5219<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6240\u6709\u4f4d\u5411\u53f3\u79fb\u52a8<\/li>\n\n\n\n<li>\u5de6\u4fa7\u8865<strong>\u7b26\u53f7\u4f4d<\/strong>\uff08\u6b63\u6570\u88650\uff0c\u8d1f\u6570\u88651\uff09<\/li>\n\n\n\n<li>\u53f3\u4fa7\u8d85\u51fa\u7684\u4f4d\u88ab\u4e22\u5f03<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u5b66\u610f\u4e49<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">&nbsp;a &gt;&gt; n = \u230aa \/ 2\u207f\u230b  \uff08\u5411\u8d1f\u65e0\u7a77\u53d6\u6574\uff09<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e38\u89c1\u7528\u9014<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5feb\u901f\u9664\u4ee52\u7684\u5e42<\/li>\n\n\n\n<li>\u53d6\u9ad8\u4f4d\u6570\u636e<\/li>\n\n\n\n<li>\u6811\u72b6\u6570\u7ec4\u4e2d\u7684 lowbit \u64cd\u4f5c<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. \u6240\u6709\u8fd0\u7b97\u7b26\u901f\u67e5\u8868<\/h2>\n\n\n\n<figure class=\"wp-block-table has-small-font-size\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u8fd0\u7b97<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u793a\u4f8b<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u7ed3\u679c<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u4e0e<\/td><td><code>5 &amp; 3<\/code><\/td><td>1<\/td><td>0101 &amp; 0011 = 0001<\/td><\/tr><tr><td>\u6216<\/td><td><code>5 | 3<\/code><\/td><td>7<\/td><td>0101 | 0011 = 0111<\/td><\/tr><tr><td>\u5f02\u6216<\/td><td><code>5 ^ 3<\/code><\/td><td>6<\/td><td>0101 ^ 0011 = 0110<\/td><\/tr><tr><td>\u53d6\u53cd<\/td><td><code>~5<\/code><\/td><td>-6<\/td><td><code>~x = -x-1<\/code><\/td><\/tr><tr><td>\u5de6\u79fb<\/td><td><code>5 &lt;&lt; 1<\/code><\/td><td>10<\/td><td><code>\u00d72<\/code><\/td><\/tr><tr><td>\u53f3\u79fb<\/td><td><code>20 &gt;&gt; 1<\/code><\/td><td>10<\/td><td><code>\u00f72<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">9. \u4f18\u5148\u7ea7\u63d0\u9192\uff08\u91cd\u8981\uff01\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4f4d\u8fd0\u7b97\u7b26\u4f18\u5148\u7ea7\u4f4e\u4e8e\u5224\u7b49\u8fd0\u7b97\u7b26<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&nbsp;\/\/ \u9519\u8bef<br>&nbsp;if (x &amp; 1 == 0) &nbsp; \/\/ \u5b9e\u9645\u662f x &amp; (1==0) \u2192 x &amp; 0<br>&nbsp;\u200b<br>&nbsp;\/\/ \u6b63\u786e<br>&nbsp;if ((x &amp; 1) == 0)<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u53e3\u8bc0<\/strong>\uff1a\u4f4d\u8fd0\u7b97\u4e00\u5f8b\u52a0\u62ec\u53f7\uff0c\u5b89\u5168\u7b2c\u4e00\u4e0d\u51fa\u9519\u3002<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u4f4d\u8fd0\u7b97\u662f\u6307\u5728\u4e8c\u8fdb\u5236\u4f4d\u7684\u5c42\u9762\u4e0a\u76f4\u63a5\u5bf9\u6574\u6570\u8fdb\u884c\u64cd\u4f5c\u7684\u8fd0\u7b97\u3002 1. \u4f4d\u8fd0\u7b97\u7b26\u6982\u5ff5 C++ \u4e2d\u7684 6 \u4e2a\u57fa\u672c\u4f4d\u8fd0\u7b97\u7b26\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-1419","post","type-post","status-publish","format-standard","hentry","category-zl"],"_links":{"self":[{"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/posts\/1419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/comments?post=1419"}],"version-history":[{"count":2,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/posts\/1419\/revisions"}],"predecessor-version":[{"id":1609,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/posts\/1419\/revisions\/1609"}],"wp:attachment":[{"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/media?parent=1419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/categories?post=1419"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wordpress.fangt.online\/index.php\/wp-json\/wp\/v2\/tags?post=1419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}