{"id":218,"date":"2017-05-05T03:29:12","date_gmt":"2017-05-05T03:29:12","guid":{"rendered":""},"modified":"2017-05-05T03:29:12","modified_gmt":"2017-05-05T03:29:12","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=218","title":{"rendered":"[\u8f6c] bitmap\u7b97\u6cd5"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_17 counter-hierarchy\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><i class=\"ez-toc-glyphicon ez-toc-icon-toggle\"><\/i><\/a><\/span><\/div>\n<nav><ul class=\"ez-toc-list ez-toc-list-level-1\"><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/weizn.net\/?p=218\/#i\" title=\"\n\t\u6982\u8ff0 \n\">\n\t\u6982\u8ff0 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/weizn.net\/?p=218\/#i-2\" title=\"\n\t\u7b97\u6cd5\u601d\u60f3 \n\">\n\t\u7b97\u6cd5\u601d\u60f3 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/weizn.net\/?p=218\/#i-3\" title=\"\n\tmap\u6620\u5c04\u8868 \n\">\n\tmap\u6620\u5c04\u8868 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/weizn.net\/?p=218\/#i-4\" title=\"\n\t\u4f4d\u79fb\u8f6c\u6362 \n\">\n\t\u4f4d\u79fb\u8f6c\u6362 \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/weizn.net\/?p=218\/#i-5\" title=\"\n\t\u4ee3\u7801\u793a\u4f8b(c\u8bed\u8a00) \n\">\n\t\u4ee3\u7801\u793a\u4f8b(c\u8bed\u8a00) \n<\/a><\/li><li class=\"ez-toc-page-1 ez-toc-heading-level-2\"><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/weizn.net\/?p=218\/#%E5%8F%82%E8%80%83%E9%93%BE%E6%8E%A5\" title=\"\n\t\t\u53c2\u8003\u94fe\u63a5 \n\t\">\n\t\t\u53c2\u8003\u94fe\u63a5 \n\t<\/a><\/li><\/ul><\/nav><\/div>\n<p>\n\t<span style=\"font-size:14px;\">\u8f6c\u81ea\uff1a http:\/\/www.cnblogs.com\/dyllove98\/archive\/2013\/07\/26\/3217741.html<\/span>\n<\/p>\n<p>\n\t<span style=\"font-size:14px;\"><br \/>\n<\/span>\n<\/p>\n<p>\n\t\n<\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span class=\"ez-toc-section\" id=\"i\"><\/span>\n\t<span style=\"font-size:14px;\">\u6982\u8ff0<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u6240\u8c13bitmap\u5c31\u662f\u7528\u4e00\u4e2abit\u4f4d\u6765\u6807\u8bb0\u67d0\u4e2a\u5143\u7d20\u5bf9\u5e94\u7684value\uff0c\u800ckey\u5373\u662f\u8fd9\u4e2a\u5143\u7d20\u3002\u7531\u4e8e\u91c7\u7528bit\u4e3a\u5355\u4f4d\u6765\u5b58\u50a8\u6570\u636e\uff0c\u56e0\u6b64\u5728\u53ef\u4ee5\u5927\u5927\u7684\u8282\u7701\u5b58\u50a8\u7a7a\u95f4<\/span>\n<\/p>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\"><br \/>\n<\/span>\n<\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span class=\"ez-toc-section\" id=\"i-2\"><\/span>\n\t<span style=\"font-size:14px;\">\u7b97\u6cd5\u601d\u60f3<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">32\u4f4d\u673a\u5668\u4e0a\uff0c\u4e00\u4e2a\u6574\u5f62\uff0c\u6bd4\u5982int a;\u5728\u5185\u5b58\u4e2d\u536032bit\uff0c\u53ef\u4ee5\u7528\u5bf9\u5e94\u768432\u4e2abit\u4f4d\u6765\u8868\u793a\u5341\u8fdb\u5236\u76840-31\u4e2a\u6570\uff0cbitmap\u7b97\u6cd5\u5229\u7528\u8fd9\u79cd\u601d\u60f3\u5904\u7406\u5927\u91cf\u6570\u636e\u7684\u6392\u5e8f\u4e0e\u67e5\u8be2<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<br style=\"margin:0px;padding:0px;\" \/>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u4f18\u70b9\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n<ul style=\"margin:0px 0px 0px 30px;padding:0px;word-break:break-all;\">\n<li style=\"margin:0px 0px 1em;padding:0px;list-style:disc;\">\n\t\t\t<span style=\"font-size:14px;\">\u6548\u7387\u9ad8\uff0c\u4e0d\u8bb8\u8fdb\u884c\u6bd4\u8f83\u548c\u79fb\u4f4d<\/span>\n\t\t<\/li>\n<li style=\"margin:0px 0px 1em;padding:0px;list-style:disc;\">\n\t\t\t<span style=\"font-size:14px;\">\u5360\u7528\u5185\u5b58\u5c11\uff0c\u6bd4\u5982N=10000000;\u53ea\u9700\u5360\u7528\u5185\u5b58\u4e3aN\/8 = 1250000Bytes = 1.2M\uff0c\u5982\u679c\u91c7\u7528int\u6570\u7ec4\u5b58\u50a8\uff0c\u5219\u9700\u898138M\u591a<\/span>\n\t\t<\/li>\n<\/ul>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u7f3a\u70b9\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n<ul style=\"margin:0px 0px 0px 30px;padding:0px;word-break:break-all;\">\n<li style=\"margin:0px 0px 1em;padding:0px;list-style:disc;\">\n\t\t\t<span style=\"font-size:14px;\">\u65e0\u6cd5\u5bf9\u5b58\u5728\u91cd\u590d\u7684\u6570\u636e\u8fdb\u884c\u6392\u5e8f\u548c\u67e5\u627e<\/span>\n\t\t<\/li>\n<\/ul>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u793a\u4f8b\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u7533\u8bf7\u4e00\u4e2aint\u578b\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u5219\u67094Byte\uff0c32bit\u3002\u8f93\u5165 4\uff0c 2, &nbsp;1, &nbsp;3\u65f6\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u8f93\u51654\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<img decoding=\"async\" src=\"http:\/\/img.blog.csdn.net\/20130725205723359?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemluc3MyNjkxNA==\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" style=\"margin:0px;padding:0px;max-width:900px;\" \/>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u8f93\u51652\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<img decoding=\"async\" src=\"http:\/\/img.blog.csdn.net\/20130725205808953?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemluc3MyNjkxNA==\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" style=\"margin:0px;padding:0px;max-width:900px;\" \/>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u8f93\u51651\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<img decoding=\"async\" src=\"http:\/\/img.blog.csdn.net\/20130725205849484?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemluc3MyNjkxNA==\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" style=\"margin:0px;padding:0px;max-width:900px;\" \/>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u8f93\u51653\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<img decoding=\"async\" src=\"http:\/\/img.blog.csdn.net\/20130725205937703?watermark\/2\/text\/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvemluc3MyNjkxNA==\/font\/5a6L5L2T\/fontsize\/400\/fill\/I0JBQkFCMA==\/dissolve\/70\/gravity\/Center\" alt=\"\" style=\"margin:0px;padding:0px;max-width:900px;\" \/>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<br style=\"margin:0px;padding:0px;\" \/>\n<\/div>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u601d\u60f3\u6bd4\u8f83\u7b80\u5355\uff0c\u5173\u952e\u662f\u5341\u8fdb\u5236\u548c\u4e8c\u8fdb\u5236bit\u4f4d\u9700\u8981\u4e00\u4e2amap\u6620\u5c04\u8868\uff0c\u628a10\u8fdb\u5236\u6620\u5c04\u5230bit\u4f4d\u4e0a<\/span>\n<\/p>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\"><br \/>\n<\/span>\n<\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span class=\"ez-toc-section\" id=\"i-3\"><\/span>\n\t<span style=\"font-size:14px;\">map\u6620\u5c04\u8868<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u5047\u8bbe\u9700\u8981\u6392\u5e8f\u6216\u8005\u67e5\u627e\u7684\u603b\u6570N=10000000,\u90a3\u4e48\u6211\u4eec\u9700\u8981\u7533\u8bf7\u7684\u5185\u5b58\u7a7a\u95f4\u4e3a int a[N\/32 + 1].\u5176\u4e2da[0]\u5728\u5185\u5b58\u4e2d\u536032\u4f4d,\u4f9d\u6b64\u7c7b\u63a8\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">bitmap\u8868\u4e3a\uff1a<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">a[0] &#8212;&#8212;&gt; 0 &#8211; 31<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">a[1] &#8212;&#8212;&gt; 32 &#8211; 63<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">a[2] &#8212;&#8212;&gt; 64 &#8211; 95<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">a[3] &#8212;&#8212;&gt; 96 &#8211; 127<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">&#8230;..<\/span>\n<\/div>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\u4e0b\u9762\u4ecb\u7ecd\u7528\u4f4d\u79fb\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684bit\u4f4d<\/span>\n<\/p>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\"><br \/>\n<\/span>\n<\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span class=\"ez-toc-section\" id=\"i-4\"><\/span>\n\t<span style=\"font-size:14px;\">\u4f4d\u79fb\u8f6c\u6362<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\uff081\uff09 \u6c42\u5341\u8fdb\u5236\u65700-N\u5bf9\u5e94\u7684\u5728\u6570\u7ec4a\u4e2d\u7684\u4e0b\u6807<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">index_loc = N \/ 32\u5373\u53ef\uff0cindex_loc\u5373\u4e3an\u5bf9\u5e94\u7684\u6570\u7ec4\u4e0b\u6807\u3002\u4f8b\u5982n = 76, \u5219loc = 76 \/ 32 = 2,\u56e0\u6b6476\u5728a[2]\u4e2d\u3002<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\uff082\uff09\u6c42\u5341\u8fdb\u5236\u65700-N\u5bf9\u5e94\u7684bit\u4f4d<\/span>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">bit_loc = N % 32\u5373\u53ef\uff0c\u4f8b\u5982 n = 76, bit_loc = 76 % 32 = 12<\/span>\n<\/div>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">\uff083\uff09\u5229\u7528\u79fb\u4f4d0-31\u4f7f\u5f97\u5bf9\u5e94\u768432bit\u4f4d\u4e3a1<\/span>\n<\/p>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\"><br \/>\n<\/span>\n<\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span class=\"ez-toc-section\" id=\"i-5\"><\/span>\n\t<span style=\"font-size:14px;\">\u4ee3\u7801\u793a\u4f8b(c\u8bed\u8a00)<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n<pre name=\"code\" class=\"cpp\" style=\"margin-top:0px;margin-bottom:0px;padding:0px;white-space:pre-wrap;word-wrap:break-word;\">#include &lt;stdio.h&gt;\n#include &lt;stdlib.h&gt;\n\n#define SHIFT 5\n#define MASK 0x1F\n\n\/**\n * \u8bbe\u7f6e\u6240\u5728\u7684bit\u4f4d\u4e3a1\n *\n * T = O(1)\n *\n *\/\nvoid set(int n, int *arr)\n{\n\tint index_loc, bit_loc;\n\n\tindex_loc = n &gt;&gt; SHIFT; \/\/ \u7b49\u4ef7\u4e8en \/ 32\n\tbit_loc = n &amp; MASK;\t\/\/ \u7b49\u4ef7\u4e8en % 32\n\n\tarr[index_loc] |= 1 &lt;&lt; bit_loc;\n}\n\n\/**\n * \u521d\u59cb\u5316arr[index_loc]\u6240\u6709bit\u4f4d\u4e3a0\n *\n * T = O(1)\n *\n *\/\nvoid clr(int n, int *arr)\n{\n\tint index_loc;\n\n\tindex_loc = n &gt;&gt; SHIFT;\n\n\tarr[index_loc] &amp;= 0;\n}\n\n\/**\n * \u6d4b\u8bd5n\u6240\u5728\u7684bit\u4f4d\u662f\u5426\u4e3a1\n *\n * T = O(1)\n *\n *\/\nint test(int n, int *arr)\n{\n\tint i, flag;\n\n\ti = 1 &lt;&lt; (n &amp; MASK);\n\n\tflag = arr[n &gt;&gt; SHIFT] &amp; i;\n\n\treturn flag;\n}\n\nint main(void)\n{\n\tint i, num, space, *arr;\n\n\twhile (scanf(\"%d\", &amp;num) != EOF) {\n\t\t\/\/ \u786e\u5b9a\u5927\u5c0f&amp;&amp;\u52a8\u6001\u7533\u8bf7\u6570\u7ec4\n\t\tspace = num \/ 32 + 1;\n\t\tarr = (int *)malloc(sizeof(int) * space);\n\n\t\t\/\/ \u521d\u59cb\u5316bit\u4f4d\u4e3a0\n\t\tfor (i = 0; i &lt;= num; i ++)\n\t\t\tclr(i, arr);\n\n\t\t\/\/ \u8bbe\u7f6enum\u7684\u6bd4\u7279\u4f4d\u4e3a1\n\t\tset(num, arr);\n\t\t\n\t\t\/\/ \u6d4b\u8bd5\n\t\tif (test(num, arr)) {\n\t\t\tprintf(\"\u6210\u529f\uff01\\n\");\n\t\t} else {\n\t\t\tprintf(\"\u5931\u8d25!\\n\");\n\t\t}\n\t}\n\n\treturn 0;\n}<\/pre>\n<p><br style=\"margin:0px;padding:0px;\" \/><\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83%E9%93%BE%E6%8E%A5\"><\/span>\n\t\t<span style=\"font-size:14px;\">\u53c2\u8003\u94fe\u63a5<\/span><br \/>\n\t<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\">\n\t<span style=\"font-size:14px;\">1.&nbsp;<\/span><a href=\"http:\/\/blog.csdn.net\/v_july_v\/article\/details\/6685962\" style=\"margin:0px;padding:0px;color:#0069D6;font-weight:inherit;line-height:inherit;\"><span style=\"font-size:14px;\">http:\/\/blog.csdn.net\/v_july_v\/article\/details\/6685962<\/span><\/a>\n<\/div>\n<p><span style=\"font-size:14px;\"><\/span> <\/p>\n<p>\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"font-size:14px;\">\u8f6c\u81ea\uff1a http:\/\/www.cnblogs.com\/dyllove98\/archive\/2013\/07\/26\/3217741.html<\/span><\/p>\n<p><span style=\"font-size:14px;\"><br \/><\/span><\/p>\n<p><\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span style=\"font-size:14px;\">\u6982\u8ff0<\/span><\/h2>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\"><span style=\"font-size:14px;\">\u6240\u8c13bitmap\u5c31\u662f\u7528\u4e00\u4e2abit\u4f4d\u6765\u6807\u8bb0\u67d0\u4e2a\u5143\u7d20\u5bf9\u5e94\u7684value\uff0c\u800ckey\u5373\u662f\u8fd9\u4e2a\u5143\u7d20\u3002\u7531\u4e8e\u91c7\u7528bit\u4e3a\u5355\u4f4d\u6765\u5b58\u50a8\u6570\u636e\uff0c\u56e0\u6b64\u5728\u53ef\u4ee5\u5927\u5927\u7684\u8282\u7701\u5b58\u50a8\u7a7a\u95f4<\/span><\/p>\n<p style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\"><span style=\"font-size:14px;\"><br \/><\/span><\/p>\n<h2 style=\"margin:10px 0px;padding:0px;font-size:21px;line-height:1.5;font-family:&quot;white-space:normal;background-color:#F5F5F5;\"><span style=\"font-size:14px;\">\u7b97\u6cd5\u601d\u60f3<\/span><\/h2>\n<div style=\"margin:0px;padding:0px;font-family:&quot;font-size:13px;white-space:normal;background-color:#F5F5F5;\"><span style=\"font-size:14px;\">32\u4f4d\u673a\u5668\u4e0a\uff0c\u4e00\u4e2a\u6574\u5f62\uff0c\u6bd4\u5982int a;\u5728\u5185\u5b58\u4e2d\u536032bit\uff0c\u53ef\u4ee5\u7528\u5bf9\u5e94\u768432\u4e2abit\u4f4d\u6765\u8868\u793a\u5341\u8fdb\u5236\u76840&#8230;<\/span><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[326],"tags":[],"class_list":["post-218","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[\u8f6c] bitmap\u7b97\u6cd5 - Wayne&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/weizn.net\/?p=218\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[\u8f6c] bitmap\u7b97\u6cd5 - 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