{"id":518,"date":"2010-09-17T13:31:16","date_gmt":"2010-09-17T05:31:16","guid":{"rendered":"http:\/\/115.29.108.60\/?p=518"},"modified":"2011-09-26T21:55:05","modified_gmt":"2011-09-26T13:55:05","slug":"const","status":"publish","type":"post","link":"http:\/\/115.29.108.60\/?p=518","title":{"rendered":"const"},"content":{"rendered":"<p>int _tmain(int argc, _TCHAR* argv[])<br \/>\n{<br \/>\n\u00a0const int e = 3;<br \/>\n\u00a0int *w = (int *)&amp;e;<br \/>\n\u00a0*w = 6; \/\/ \u4e0d\u4f1a\u62a5\u9519\uff0c\u4f46\u662fe\u7684\u503c\u4e0d\u4f1a\u6539\u53d8\u3002<br \/>\n\u00a0e = 6; \/\/ \u62a5\u9519<br \/>\n\u00a0int a = e;<br \/>\n\u00a0printf(&#8220;%d,%d&#8221;, e, a);<br \/>\n\u00a0return 0;<br \/>\n}<\/p>\n<p>\u5206\u6790\uff1a\u7f16\u8bd1\u5668\u5bf9const\u7684\u68c0\u67e5\u662f\u5bf9\u5e38\u91cf\u540d\u8fdb\u884c\u7684\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u00a0int *w = (int *)&amp;e;*w=6;\u6539\u53d8e\u7684\u503c\u3002\u4f46\u662f\u4e3a\u4ec0\u4e48\u00a0int a =\u00a0 e;printf(&#8220;%d,%d&#8221;, e, a);e\u548ca\u7684\u503c\u90fd\u662f3\u5462\uff1f\u8fd9\u662f\u56e0\u4e3a\u7531\u4e8e\u5728\u7f16\u8bd1\u65f6e\u7684\u503c\u5df2\u77e5\uff0c\u5e76\u4e14\u662fconst\u5e38\u91cf\uff0c\u6240\u4ee5\u751f\u6210\u7684\u4ee3\u7801\u5e76\u4e0d\u662f\u5f15\u7528e\uff0c\u800c\u4e14\u76f4\u63a5\u5f15\u7528\u4e86\u7acb\u5373\u65703\u3002\u901a\u8fc7printf(&#8220;%d-%d,%d-%d&#8221;, &amp;e, e, w, *w);\u4f1a\u53d1\u73b0&amp;e\u548cw\uff08\u5373\u5730\u5740\u503c\uff09\u662f\u4e00\u6837\u7684\uff0c\u4f46\u662fe\u548c*w\uff08\u5373\u503c\uff09\u662f\u4e0d\u4e00\u6837\u7684\u3002<\/p>\n<p>\u53c2\u8003\u8d44\u6599\uff1a<a href=\"http:\/\/baike.baidu.com\/view\/1065598.htm\" target=\"_blank\">CONST<\/a><\/p>\n<p><a href=\"http:\/\/zhidao.baidu.com\/question\/63782441.html\" target=\"_blank\">\u4fee\u6539const\u503c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>int _tmain(int argc, _TCHAR* argv[]) { \u00a0const int e = 3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-518","post","type-post","status-publish","format-standard","hentry","category-cplusplus"],"_links":{"self":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=518"}],"version-history":[{"count":4,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/518\/revisions"}],"predecessor-version":[{"id":930,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/518\/revisions\/930"}],"wp:attachment":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=518"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}