{"id":151508,"date":"2020-08-29T06:55:08","date_gmt":"2020-08-28T22:55:08","guid":{"rendered":"http:\/\/4563.org\/?p=151508"},"modified":"2020-08-29T06:55:08","modified_gmt":"2020-08-28T22:55:08","slug":"%e6%b1%82%e8%a7%a3%e4%b8%80%e4%b8%aa%e7%ae%80%e5%8d%95%e7%9a%84-c-%e8%af%ad%e8%a8%80%e7%9a%84%e9%97%ae%e9%a2%98-%e4%ba%8b%e5%ae%9e%e8%af%81%e6%98%8e%e6%88%91%e4%b8%80%e7%9b%b4%e6%98%af%e9%94%99","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=151508","title":{"rendered":"\u6c42\u89e3\u4e00\u4e2a\u7b80\u5355\u7684 C \u8bed\u8a00\u7684\u95ee\u9898, \u4e8b\u5b9e\u8bc1\u660e\u6211\u4e00\u76f4\u662f\u9519\u7684"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u6c42\u89e3\u4e00\u4e2a\u7b80\u5355\u7684 C \u8bed\u8a00\u7684\u95ee\u9898, \u4e8b\u5b9e\u8bc1\u660e\u6211\u4e00\u76f4\u662f\u9519\u7684               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : Vibra <\/span>  <span><i><\/i> 17<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u76f4\u63a5\u4e0a\u4ee3\u7801<\/p>\n<pre><code>#include &lt;stdio.h&gt;  char *test() { \/\/    char res[] = \"hello, world\"; \/\/    return res;     return \"hello, world\"; }  const char *tt() {     const char *str = test();     printf(\"%sn\", str);     return str; }  int main() {     const char *str = tt();     printf(\"%sn\", str); } <\/code><\/pre>\n<blockquote>\n<p>\u7ed3\u679c\u662f\u6253\u5370\u4e86\u4e24\u6b21 hello world, \u6ce8\u91ca\u662f\u4e24\u4e2a\u4e71\u7801<br \/> \u6240\u4ee5, \u8bf7\u95ee return \u201chello, world\u201d \u7684\u8fd9\u4e2a\u5b58\u50a8 hello, world \u7684\u5185\u5b58\u5728\u4ec0\u4e48\u5730\u65b9<\/p>\n<\/blockquote><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>7<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"3093587\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : codehz <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u5b57\u7b26\u4e32\u5e38\u91cf\u533a\u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093588\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : Vibra <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @codehz \u4e86\u89e3\u4e86, \u4e4b\u524d\u4e00\u76f4\u4e0d\u77e5\u9053\u8fd8\u6709\u8fd9\u4e48\u4e00\u4e2a\u533a, \u611f\u8c22                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093589\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : junnplus <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u4f60\u7ed9 char res \u52a0\u4e00\u4e2a static \u5c31\u53ef\u4ee5\u4e86\uff0c\u653e\u5728\u9759\u6001\u533a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093590\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : CismonX <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4e00\u822c\u5b58\u50a8\u5728 .rodata \u533a\u6bb5\uff0c\u800c\u7528\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u6765\u521d\u59cb\u5316\u5b57\u7b26\u6570\u7ec4\u65f6\uff0c\u5219\u4f1a\u5c06\u5176\u62f7\u8d1d\u5230\u6808\uff0c\u5f53\u7136\u51fd\u6570\u8fd4\u56de\u540e\u6808\u5e27\u88ab\u91ca\u653e\uff0c\u6240\u4ee5\u4f60\u6ce8\u91ca\u6389\u7684\u90a3\u4e2a\u8fd4\u56de\u503c\u5176\u5b9e\u662f\u4e00\u4e2a dangling pointer                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093591\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : Vibra <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @junnplus \u6211\u4e0d\u77e5\u9053\u7684\u662f\u8fd8\u6709\u5b57\u7b26\u4e32\u5e38\u91cf\u533a, \u8fd9\u6837\u53ef\u4ee5\u4e0d\u7528\u52a0 static                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093592\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : akatquas <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u4f60\u627e\u4e2a\u7f16\u8bd1\u6210\u6c47\u7f16\u7684\u5de5\u5177\uff0c\u4e00\u76ee\u4e86\u7136\u3002<\/p>\n<p>\u5e38\u91cf\u5b57\u7b26\u4e32\u5728 c \u91cc\u9762\u662f\u6709\u4f18\u5316\u5b58\u50a8\u7684\u3002<br \/>\u751a\u81f3\u4f60`&#8221;%sn&#8221;`\u8fd9\u5b57\u7b26\u4e32\u4e5f\u53ef\u4ee5\u88ab\u5b58\u5230\u4e86\u8fd9\u4e2a\u5730\u65b9\uff0c\u53d6\u51b3\u4e8e\u7f16\u8bd1\u5668\u884c\u4e3a\u3002<br \/>\u63a8\u8350\u4e00\u4e2a\u7f51\u7ad9\uff0chttps:\/\/godbolt.org\/                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3093593\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : Vibra <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @akatquas \u5f88\u6709\u7528, \u611f\u8c22                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u6c42\u89e3\u4e00\u4e2a\u7b80\u5355\u7684 C \u8bed\u8a00\u7684\u95ee\u9898, &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/151508"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=151508"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/151508\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=151508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=151508"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=151508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}