{"id":1305,"date":"2023-09-26T07:41:51","date_gmt":"2023-09-26T07:41:51","guid":{"rendered":"http:\/\/www.recologypower.com:9080\/?p=1305"},"modified":"2023-09-26T09:09:59","modified_gmt":"2023-09-26T09:09:59","slug":"%e3%80%90c%e8%af%ad%e8%a8%80%e3%80%91%e5%88%a0%e9%99%a4%e6%96%87%e4%bb%b6%e5%b0%be%e9%83%a8n%e4%b8%aa%e5%ad%97%e8%8a%82","status":"publish","type":"post","link":"http:\/\/www.recologypower.com:9080\/?p=1305","title":{"rendered":"\u3010C\u8bed\u8a00\u3011\u5220\u9664\u6587\u4ef6\u5c3e\u90e8N\u4e2a\u5b57\u8282"},"content":{"rendered":"\n<pre class=\"wp-block-code has-white-background-color has-background\"><code>#include &lt;stdio.h&gt; \n#include &lt;stdlib.h&gt;\n#include &lt;string.h&gt;\n#include &lt;unistd.h&gt;\n\nint main(int argc,char **argv) \n{ \n\tchar filename&#91;128]=\"\";\n\t\n\tstrcpy(filename,argv&#91;1]);\n\tprintf(\"filename:%s\\r\\n\",filename);\n\t\n\tFILE *fp = fopen(filename, \"rb+\"); \n\tif (fp == NULL) \n\t{\n\t\tprintf(\"\u6587\u4ef6\u6253\u5f00\u5931\u8d25\\n\"); return -1; \n\t} \n\tint num_bytes = 10; \/\/ \u8981\u5220\u9664\u7684\u5b57\u8282\u6570 \n\tfseek(fp, -num_bytes, SEEK_END); \n\tftruncate(fileno(fp), ftell(fp)); \n\tfclose(fp); \n\treturn 0; \n}<\/code><\/pre>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-71332610-c964-4b32-8e9d-e244c4be5714\" href=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2023\/09\/del_bytes.c\">del_bytes<\/a><a href=\"http:\/\/www.recologypower.com:9080\/wp-content\/uploads\/2023\/09\/del_bytes.c\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-71332610-c964-4b32-8e9d-e244c4be5714\">\u4e0b\u8f7d<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"slide-text-bg2\">\n<h3><\/h3>\n<\/div>\n<div class=\"flex-btn-div\"><a href=\"http:\/\/www.recologypower.com:9080\/?p=1305\" class=\"btn1 flex-btn\">\u9605\u8bfb\u66f4\u591a<\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"_links":{"self":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1305"}],"collection":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1305"}],"version-history":[{"count":2,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1305\/revisions"}],"predecessor-version":[{"id":1308,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/1305\/revisions\/1308"}],"wp:attachment":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1305"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}