\u5f62\u53c2p\u662f\u5916\u90e8\u6307\u9488\u7684\u503c\u62f7\u8d1d\u526f\u672c，\u548c\u5916\u90e8\u539f\u6307\u9488\u5206\u5c5e\u4e24\u5757\u72ec\u7acb\u6808\u53d8\u91cf\u3002
\n\u6267\u884cp = malloc()\u4ec5\u4fee\u6539\u526f\u672c\u4fdd\u5b58\u7684\u5730\u5740，\u5916\u90e8\u6307\u9488\u5b8c\u5168\u4e0d\u53d8，\u5806\u5730\u5740\u4e22\u5931，\u9020\u6210\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n
\u51fd\u6570\u5185\u624b\u52a8\u5b9a\u4e49\u5c40\u90e8\u6307\u9488p，\u4e0d\u5b58\u5728\u5916\u90e8\u4f20\u5165\u526f\u672c\u3002
\nreturn p\u628a\u5806\u5730\u5740\u6570\u503c\u62f7\u8d1d\u8d4b\u503c\u7ed9\u5916\u90e8\u53d8\u91cf；\u51fd\u6570\u9500\u6bc1\u5c40\u90e8p\u4e0d\u5f71\u54cd\u5806\u5185\u5b58，\u5730\u5740\u53ef\u6b63\u5e38\u8bbf\u95ee\u3001\u91ca\u653e\u3002<\/p>\n
#include <stdio.h>
\n#include <stdlib.h>
\n#include <string.h><\/p>\n
void getmemory(char *p)
\n{
\n\u00a0 \u00a0 p\u00a0= (char *)malloc(100); \/\/ \u53ea\u4fee\u6539\u4e34\u65f6\u526f\u672cp
\n\u00a0 \u00a0 strcpy(p, "hello world!");
\n}<\/p>\n
int main()
\n{
\n\u00a0 \u00a0 char *str = NULL;
\n\u00a0 \u00a0 getmemory(str);
\n\u00a0 \u00a0 printf("%s\\\\n",str);
\n\u00a0 \u00a0 free(str);
\n\u00a0 \u00a0 return 0;
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c<\/p>\n
#include <stdio.h>
\n#include <stdlib.h>
\n#include <string.h><\/p>\n
char* getmemory(void)
\n{
\n\u00a0 \u00a0 char *p = (char *)malloc(100); \/\/ \u51fd\u6570\u81ea\u6709\u5c40\u90e8\u6307\u9488，\u975e\u4f20\u5165\u526f\u672c
\n\u00a0 \u00a0 strcpy(p, "hello world!");
\n\u00a0 \u00a0 return p; \/\/ \u5c06\u5806\u5730\u5740\u62f7\u8d1d\u7ed9\u5916\u90e8str
\n}<\/p>\n
int main()
\n{
\n\u00a0 \u00a0 char *str = getmemory();
\n\u00a0 \u00a0 printf("%s\\\\n",str);
\n\u00a0 \u00a0 free(str);
\n\u00a0 \u00a0 return 0;
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c<\/p>\n
\u4f20\u53c2 p \u53ea\u662f\u5916\u90e8\u6307\u9488\u526f\u672c，malloc \u65b0\u5730\u5740\u65e0\u6cd5\u540c\u6b65\u5230\u5916\u90e8；<\/p>\n
\u51fd\u6570\u81ea\u5efa\u5c40\u90e8 p，\u4f9d\u9760 return \u76f4\u63a5\u5bfc\u51fa\u6709\u6548\u5806\u5730\u5740，\u4e24\u6bb5\u4ee3\u7801\u91cc\u7684 p \u5b8c\u5168\u4e92\u4e0d\u5e72\u6270\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u6838\u5fc3\u5dee\u5f02：\u4e24\u5904 p \u662f\u5b8c\u5168\u72ec\u7acb\u53d8\u91cf1. \u4e00\u7ea7\u6307\u9488\u4f20\u53c2\u573a\u666f（\u975e\u6cd5）\u5f62\u53c2p\u662f\u5916\u90e8\u6307\u9488\u7684\u503c\u62f7\u8d1d\u526f\u672c，\u548c\u5916\u90e8\u539f\u6307\u9488\u5206\u5c5e\u4e24\u5757\u72ec\u7acb\u6808\u53d8\u91cf\u3002
\n\u6267\u884cp malloc()\u4ec5\u4fee\u6539\u526f\u672c\u4fdd\u5b58\u7684\u5730\u5740，\u5916\u90e8\u6307\u9488\u5b8c\u5168\u4e0d\u53d8，\u5806\u5730\u5740\u4e22\u5931，\u9020\u6210\u5185\u5b58\u6cc4\u6f0f\u30022. return \u8fd4\u56de\u573a\u666f（\u5408\u6cd5）\u51fd\u6570\u5185\u624b\u52a8\u5b9a\u4e49\u5c40\u90e8\u6307\u9488p，\u4e0d\u5b58\u5728\u5916\u90e8\u4f20\u5165\u526f\u672c\u3002
\nreturn p\u628a\u5806\u5730\u5740\u6570\u503c\u62f7\u8d1d<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[174,1813],"topic":[],"class_list":["post-94305","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-1813"],"yoast_head":"\n