{"id":78191,"date":"2026-02-26T15:08:57","date_gmt":"2026-02-26T07:08:57","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78191.html"},"modified":"2026-02-26T15:08:57","modified_gmt":"2026-02-26T07:08:57","slug":"%e5%8a%a8%e6%80%81%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%ef%bc%88%e4%b8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78191.html","title":{"rendered":"\u52a8\u6001\u5185\u5b58\u7ba1\u7406\uff08\u4e0b\uff09"},"content":{"rendered":"

\u4e00\u3001\u52a8\u6001\u5185\u5b58\u7ecf\u5178\u7b14\u8bd5\u9898\u5206\u6790<\/h2>\n

1.1 \u9898\u76ee1：<\/h3>\n

void GetMemory(char* p)
\n{
\n\u00a0\u00a0 \u00a0p = (char*)malloc(100);
\n}
\nvoid Test(void)
\n{
\n\u00a0\u00a0 \u00a0char* str = NULL;
\n\u00a0\u00a0 \u00a0GetMemory(str);
\n\u00a0\u00a0 \u00a0strcpy(str, "hello world");
\n\u00a0\u00a0 \u00a0printf(str);
\n}<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bf7\u95ee\u8fd0\u884cTest\u51fd\u6570\u4f1a\u6709\u4ec0\u4e48\u6837\u7684\u7ed3\u679c？<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7a0b\u5e8f\u4f1a\u53d1\u751f\u5d29\u6e83\u3002\u539f\u56e0\u662f：str \u521d\u59cb\u4e3a NULL，\u8c03\u7528 GetMemory(str) \u65f6，\u7531\u4e8e\u53c2\u6570\u662f\u503c\u4f20\u9012，\u51fd\u6570\u5185\u90e8\u867d\u7136\u6267\u884c\u4e86 malloc(100)，\u4f46\u5e76\u6ca1\u6709\u6539\u53d8\u5916\u90e8\u7684 str，\u8fd4\u56de\u540e str \u4ecd\u7136\u662f NULL\u3002\u968f\u540e\u6267\u884c strcpy(str, "hello world"); \u65f6，\u76f8\u5f53\u4e8e\u5411\u7a7a\u6307\u9488\u5199\u5165\u6570\u636e，\u5c5e\u4e8e\u975e\u6cd5\u5185\u5b58\u8bbf\u95ee，\u7a0b\u5e8f\u4f1a\u76f4\u63a5\u5d29\u6e83\u6216\u5f02\u5e38\u7ec8\u6b62\u3002<\/p>\n

1.2\u00a0\u9898\u76ee2：<\/h3>\n

char* GetMemory(void)
\n{
\n\u00a0\u00a0 \u00a0char p[] = "hello world";
\n\u00a0\u00a0 \u00a0return p;
\n}
\nvoid Test(void)
\n{
\n\u00a0\u00a0 \u00a0char* str = NULL;
\n\u00a0\u00a0 \u00a0str = GetMemory();
\n\u00a0\u00a0 \u00a0printf(str);
\n}<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bf7\u95ee\u8fd0\u884cTest\u51fd\u6570\u4f1a\u6709\u4ec0\u4e48\u6837\u7684\u7ed3\u679c？<\/p>\n

\u00a0\u00a0 \u00a0 \u00a0 \u00a0\u8f93\u51fa\u4e71\u7801\u3002\u539f\u56e0\u5728\u4e8e：GetMemory \u51fd\u6570\u4e2d\u5b9a\u4e49\u7684 char p[] = "hello world"; \u662f\u4e00\u4e2a\u5c40\u90e8\u6570\u7ec4，\u5b58\u50a8\u5728\u51fd\u6570\u6808\u5e27\u91cc\u3002\u5f53\u51fd\u6570\u8fd4\u56de\u65f6，\u8fd9\u5757\u6808\u7a7a\u95f4\u5c31\u5931\u6548\u4e86，\u4f46\u51fd\u6570\u5374\u628a\u5b83\u7684\u5730\u5740\u8fd4\u56de\u7ed9\u4e86\u5916\u90e8\u3002\u4e8e\u662f str \u5f97\u5230\u7684\u662f\u4e00\u5757\u5df2\u7ecf\u88ab\u91ca\u653e（\u65e0\u6548）\u7684\u5185\u5b58\u5730\u5740，\u79f0\u4e3a\u91ce\u6307\u9488 \/ \u60ac\u7a7a\u6307\u9488\u3002\u968f\u540e\u6267\u884c printf(str); \u5c31\u662f\u5728\u8bbf\u95ee\u65e0\u6548\u5185\u5b58.<\/p>\n

1.3 \u9898\u76ee3：<\/h3>\n

void GetMemory(char** p, int num)
\n{
\n\u00a0\u00a0 \u00a0*p = (char*)malloc(num);
\n}
\nvoid Test(void)
\n{
\n\u00a0\u00a0 \u00a0char* str = NULL;
\n\u00a0\u00a0 \u00a0GetMemory(&str, 100);
\n\u00a0\u00a0 \u00a0strcpy(str, "hello");
\n\u00a0\u00a0 \u00a0printf(str);
\n}<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bf7\u95ee\u8fd0\u884cTest\u51fd\u6570\u4f1a\u6709\u4ec0\u4e48\u6837\u7684\u7ed3\u679c？<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8f93\u51fa "hello"\u3002\u51fd\u6570\u4e2d，str \u521d\u59cb\u4e3a NULL，\u901a\u8fc7\u8c03\u7528 GetMemory(&str, 100) \u5728\u5806\u4e0a\u5206\u914d\u4e86 100 \u5b57\u8282\u5185\u5b58，\u5e76\u628a\u5730\u5740\u56de\u4f20\u7ed9 str\u3002\u968f\u540e，strcpy(str, "hello") \u5c06\u5b57\u7b26\u4e32\u5199\u5165\u8fd9\u5757\u5185\u5b58，\u518d\u901a\u8fc7 printf("%s", str) \u6253\u5370\u51fa\u6765\u3002<\/p>\n

1.4 \u9898\u76ee4：<\/h3>\n

void Test(void)
\n{
\n\u00a0\u00a0 \u00a0char* str = (char*)malloc(100);
\n\u00a0\u00a0 \u00a0strcpy(str, "hello");
\n\u00a0\u00a0 \u00a0free(str);
\n\u00a0\u00a0 \u00a0if (str != NULL)
\n\u00a0\u00a0 \u00a0{
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0strcpy(str, "world");
\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0printf(str);
\n\u00a0\u00a0 \u00a0}
\n}<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bf7\u95ee\u8fd0\u884cTest\u51fd\u6570\u4f1a\u6709\u4ec0\u4e48\u6837\u7684\u7ed3\u679c？<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4f1a\u8f93\u51faworld\u3002\u8fd9\u6bb5\u4ee3\u7801\u7684\u89e3\u6790\u5982\u4e0b：\u51fd\u6570 Test \u9996\u5148\u7528 malloc(100) \u4e3a\u6307\u9488 str \u5728\u5806\u4e0a\u5206\u914d\u4e86 100 \u5b57\u8282\u5185\u5b58，\u7136\u540e\u7528 strcpy(str, "hello"); \u5c06 "hello" \u5199\u5165\u8be5\u5185\u5b58\u3002\u63a5\u7740\u8c03\u7528 free(str); \u91ca\u653e\u5185\u5b58，\u4f46\u6307\u9488 str \u672c\u8eab\u4ecd\u7136\u4fdd\u5b58\u7740\u539f\u6765\u7684\u5730\u5740，\u8fd9\u65f6\u5b83\u6210\u4e3a \u60ac\u7a7a\u6307\u9488\u3002\u4e4b\u540e，\u4ee3\u7801\u5224\u65ad if (str != NULL)，\u6761\u4ef6\u6210\u7acb，\u56e0\u4e3a\u6307\u9488\u672c\u8eab\u975e\u7a7a，\u4f46\u5b83\u6307\u5411\u7684\u5185\u5b58\u5df2\u7ecf\u88ab\u91ca\u653e\u3002\u968f\u540e\u6267\u884c strcpy(str, "world"); \u548c printf(str)\u3002<\/p>\n

\u4e8c\u3001\u67d4\u6027\u6570\u7ec4<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e5f\u8bb8\u4f60\u4ece\u6765\u6ca1\u6709\u542c\u8bf4\u8fc7\u67d4\u6027\u6570\u7ec4\u8fd9\u4e2a\u6982\u5ff5，\u4f46\u662f\u5b83\u786e\u5b9e\u662f\u5b58\u5728\u7684\u3002 C99\u4e2d，\u7ed3\u6784\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5141\u8bb8\u662f\u672a\u77e5\u5927\u5c0f\u7684\u6570\u7ec4，\u8fd9\u5c31\u53eb\u505a\u67d4\u6027\u6570\u7ec4\u6210\u5458\u3002 \u4f8b\u5982：<\/p>\n

struct st_type
\n{
\n\u00a0\u00a0 \u00a0int i;
\n\u00a0\u00a0 \u00a0int a[0];\/\/\u67d4\u6027\u6570\u7ec4\u6210\u5458
\n};
\n\u00a0<\/p>\n

2.1\u67d4\u6027\u6570\u7ec4\u7684\u7279\u70b9<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7ed3\u6784\u4e2d\u7684\u67d4\u6027\u6570\u7ec4\u6210\u5458\u524d\u9762\u5fc5\u987b\u81f3\u5c11\u4e00\u4e2a\u5176\u4ed6\u6210\u5458\u3002sizeof\u8fd4\u56de\u7684\u8fd9\u79cd\u7ed3\u6784\u5927\u5c0f\u4e0d\u5305\u62ec\u67d4\u6027\u6570\u7ec4\u7684\u5185\u5b58\u3002\u5305\u542b\u67d4\u6027\u6570\u7ec4\u6210\u5458\u7684\u7ed3\u6784\u7528malloc()\u51fd\u6570\u8fdb\u884c\u5185\u5b58\u7684\u52a8\u6001\u5206\u914d，\u5e76\u4e14\u5206\u914d\u7684\u5185\u5b58\u5e94\u8be5\u5927\u4e8e\u7ed3\u6784\u7684\u5927\u5c0f，\u4ee5\u9002\u5e94\u67d4\u6027\u6570\u7ec4\u7684\u9884\u671f\u5927\u5c0f\u3002<\/p>\n

\u4f8b\u5982：<\/p>\n

typedef struct st_type
\n{
\n\u00a0\u00a0 \u00a0int i;
\n\u00a0\u00a0 \u00a0int a[0];\/\/\u67d4\u6027\u6570\u7ec4\u6210\u5458<\/p>\n

}type_a;<\/p>\n

int main()
\n{
\n\u00a0\u00a0 \u00a0printf("%d\\\\n", sizeof(type_a));\/\/\u8f93\u51fa\u7684\u662f4
\n\u00a0\u00a0 \u00a0return 0;
\n}<\/p>\n

2.2\u67d4\u6027\u6570\u7ec4\u7684\u4f7f\u7528<\/h3>\n

\u4ee3\u78011：<\/p>\n

#include <stdio.h>
\n#include <stdlib.h>
\nint main()
\n{
\nint i = 0;
\ntype_a* p = (type_a*)malloc(sizeof(type_a) + 100 * sizeof(int));
\n\/\/\u4e1a\u52a1\u5904\u7406<\/p>\n

p->i = 100;
\nfor (i = 0; i < 100; i++)
\n{
\np->a[i] = i;
\n}
\nfree(p);
\nreturn 0;
\n}<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8fd9\u6837\u67d4\u6027\u6570\u7ec4\u6210\u5458a，\u76f8\u5f53\u4e8e\u83b7\u5f97\u4e86100\u4e2a\u6574\u578b\u5143\u7d20\u7684\u8fde\u7eed\u7a7a\u95f4\u3002\u8fd9\u9996\u5148，\u5b9a\u4e49\u4e86\u7ed3\u6784\u4f53 type_a，\u5176\u4e2d i \u662f\u666e\u901a\u6574\u578b\u6210\u5458，a[] \u662f\u7075\u6d3b\u6570\u7ec4\u6210\u5458，\u6ca1\u6709\u56fa\u5b9a\u957f\u5ea6\u3002main \u51fd\u6570\u4e2d，\u8c03\u7528 malloc(sizeof(type_a) + 100 * sizeof(int)) \u4e3a\u7ed3\u6784\u4f53\u672c\u8eab\u52a0\u4e0a 100 \u4e2a\u6574\u6570\u7684\u6570\u7ec4\u7a7a\u95f4\u5728\u5806\u4e0a\u5206\u914d\u5185\u5b58，\u5e76\u5c06\u8fd4\u56de\u7684\u5730\u5740\u8d4b\u7ed9\u6307\u9488 p\u3002\u63a5\u7740\u68c0\u67e5 malloc \u662f\u5426\u6210\u529f，\u5982\u679c\u5931\u8d25\u76f4\u63a5\u8fd4\u56de\u3002\u7136\u540e\u901a\u8fc7 p->i = 100; \u7ed9\u666e\u901a\u6210\u5458\u8d4b\u503c，\u518d\u7528\u5faa\u73af\u5c06 0~99 \u7684\u6574\u6570\u4f9d\u6b21\u5199\u5165\u7075\u6d3b\u6570\u7ec4 p->a[i]\u3002\u6700\u540e\u901a\u8fc7 printf \u6253\u5370\u7ed3\u6784\u4f53\u6210\u5458 i \u4ee5\u53ca\u6570\u7ec4\u9996\u5c3e\u5143\u7d20，\u9a8c\u8bc1\u6570\u636e\u6b63\u786e\u6027\u3002<\/p>\n

2.3\u67d4\u6027\u6570\u7ec4\u7684\u4f18\u52bf<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u8ff0\u7684type_a \u7ed3\u6784\u4e5f\u53ef\u4ee5\u8bbe\u8ba1\u4e3a\u4e0b\u9762\u7684\u7ed3\u6784，\u4e5f\u80fd\u5b8c\u6210\u540c\u6837\u7684\u6548\u679c\u3002<\/p>\n

\u4ee3\u78012：<\/p>\n

#include <stdio.h>
\n#include <stdlib.h>
\ntypedef struct st_type
\n{
\nint i;
\nint* p_a;
\n}type_a;
\nint main()
\n{
\ntype_a* p = (type_a*)malloc(sizeof(type_a));
\np->i = 100;
\np->p_a = (int*)malloc(p->i * sizeof(int));
\n\/\/\u4e1a\u52a1\u5904\u7406<\/p>\n

for (int i = 0; i < 100; i++)
\n{
\np->p_a[i] = i;
\n}
\n\/\/\u91ca\u653e\u7a7a\u95f4<\/p>\n

free(p->p_a);
\np->p_a = NULL;
\nfree(p);
\np = NULL;
\nreturn 0;
\n}<\/p>\n

\u00a0 \u00a0 \u00a0 \u9996\u5148\u5b9a\u4e49\u7ed3\u6784\u4f53 type_a，\u5305\u542b\u4e00\u4e2a\u6574\u6570 i \u548c\u4e00\u4e2a\u6574\u578b\u6307\u9488 p_a，\u7528\u4e8e\u6307\u5411\u52a8\u6001\u5206\u914d\u7684\u6570\u7ec4\u3002\u5728 main \u4e2d，\u5148\u7528 malloc(sizeof(type_a)) \u4e3a\u7ed3\u6784\u4f53\u672c\u8eab\u5728\u5806\u4e0a\u5206\u914d\u5185\u5b58，\u5e76\u5c06\u8fd4\u56de\u7684\u5730\u5740\u8d4b\u7ed9\u6307\u9488 p\u3002\u7136\u540e\u8bbe\u7f6e p->i = 100;，\u8868\u793a\u6570\u7ec4\u957f\u5ea6\u4e3a 100，\u518d\u901a\u8fc7 p->p_a = malloc(p->i * sizeof(int)) \u4e3a\u6307\u9488\u6210\u5458 p_a \u5206\u914d 100 \u4e2a\u6574\u6570\u7684\u5185\u5b58\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u63a5\u7740\u901a\u8fc7\u5faa\u73af for (int i = 0; i < 100; i++) p->p_a[i] = i; \u5c06 0~99 \u7684\u503c\u5199\u5165\u6570\u7ec4，\u5b9e\u73b0\u4e1a\u52a1\u5904\u7406\u3002\u4f7f\u7528\u5b8c\u6570\u7ec4\u548c\u7ed3\u6784\u4f53\u540e，\u5148 free(p->p_a) \u91ca\u653e\u6570\u7ec4\u5185\u5b58，\u5e76\u5c06\u6307\u9488\u7f6e NULL \u907f\u514d\u60ac\u7a7a\u6307\u9488，\u518d free(p) \u91ca\u653e\u7ed3\u6784\u4f53\u672c\u8eab，\u540c\u65f6\u5c06 p \u7f6e NULL，\u4fdd\u8bc1\u5b89\u5168\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u8ff0\u4ee3\u7801 1 \u548c \u4ee3\u7801 2 \u53ef\u4ee5\u5b8c\u6210\u540c\u6837\u7684\u529f\u80fd，\u4f46\u662f \u65b9\u6cd5 1 \u7684\u5b9e\u73b0\u6709\u4e24\u4e2a\u597d\u5904：<\/p>\n

1.\u65b9\u4fbf\u5185\u5b58\u91ca\u653e \u5982\u679c\u6211\u4eec\u7684\u4ee3\u7801\u662f\u5728\u4e00\u4e2a\u7ed9\u522b\u2f08\u7528\u7684\u51fd\u6570\u4e2d，\u4f60\u5728\u91cc\u9762\u505a\u4e86\u4e8c\u6b21\u5185\u5b58\u5206\u914d，\u5e76\u628a\u6574\u4e2a\u7ed3\u6784\u4f53\u8fd4\u56de\u7ed9\u7528\u6237\u3002\u7528\u6237\u8c03\u7528free\u53ef\u4ee5\u91ca\u653e\u7ed3\u6784\u4f53，\u4f46\u662f\u7528\u6237\u5e76\u4e0d\u77e5\u9053\u8fd9\u4e2a\u7ed3\u6784\u4f53\u5185\u7684\u6210\u5458\u4e5f\u9700\u8981free，\u6240\u4ee5\u4f60\u4e0d\u80fd\u6307\u671b\u7528\u6237\u6765\u53d1\u73b0\u8fd9\u4e2a\u4e8b\u3002\u6240\u4ee5，\u5982\u679c\u6211\u4eec\u628a\u7ed3\u6784\u4f53\u7684\u5185\u5b58\u4ee5\u53ca\u5176\u6210\u5458\u8981\u7684\u5185\u5b58\u2f00\u6b21\u6027\u5206\u914d\u597d\u4e86，\u5e76\u8fd4\u56de\u7ed9\u7528\u6237\u4e00\u4e2a\u7ed3\u6784\u4f53\u6307\u9488，\u7528\u6237\u505a\u4e00\u6b21free\u5c31\u53ef\u4ee5\u628a\u6240\u6709\u7684\u5185\u5b58\u4e5f\u7ed9\u91ca\u653e\u6389\u3002<\/p>\n

2.\u8fd9\u6837\u6709\u5229\u4e8e\u8bbf\u95ee\u901f\u5ea6\u3002\u8fde\u7eed\u7684\u5185\u5b58\u6709\u76ca\u4e8e\u63d0\u9ad8\u8bbf\u95ee\u901f\u5ea6，\u4e5f\u6709\u76ca\u4e8e\u51cf\u5c11\u5185\u5b58\u788e\u7247\u3002<\/p>\n

\u4e09\u3001\u603b\u7ed3C\/C++\u4e2d\u7a0b\u5e8f\u5185\u5b58\u533a\u57df\u5212\u5206<\/h2>\n

\"\"<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0C\/C++\u7a0b\u5e8f\u5185\u5b58\u5206\u914d\u7684\u51e0\u4e2a\u533a\u57df：<\/p>\n

1. \u6808\u533a（stack）：\u5728\u6267\u884c\u51fd\u6570\u65f6，\u51fd\u6570\u5185\u5c40\u90e8\u53d8\u91cf\u7684\u5b58\u50a8\u5355\u5143\u90fd\u53ef\u4ee5\u5728\u6808\u4e0a\u521b\u5efa，\u51fd\u6570\u6267\u884c\u7ed3\u675f\u65f6 \u8fd9\u4e9b\u5b58\u50a8\u5355\u5143\u81ea\u52a8\u88ab\u91ca\u653e\u3002\u6808\u5185\u5b58\u5206\u914d\u8fd0\u7b97\u5185\u7f6e\u4e8e\u5904\u7406\u5668\u7684\u6307\u4ee4\u96c6\u4e2d，\u6548\u7387\u5f88\u9ad8，\u4f46\u662f\u5206\u914d\u7684\u5185\u5b58\u5bb9\u91cf\u6709\u9650\u3002\u6808\u533a\u4e3b\u8981\u5b58\u653e\u8fd0\u884c\u51fd\u6570\u800c\u5206\u914d\u7684\u5c40\u90e8\u53d8\u91cf\u3001\u51fd\u6570\u53c2\u6570\u3001\u8fd4\u56de\u6570\u636e\u3001\u8fd4\u56de\u5730\u5740\u7b49\u3002\u00a0<\/p>\n

2. \u5806\u533a（heap）：\u4e00\u822c\u7531\u7a0b\u5e8f\u5458\u5206\u914d\u91ca\u653e，\u82e5\u7a0b\u5e8f\u5458\u4e0d\u91ca\u653e，\u7a0b\u5e8f\u7ed3\u675f\u65f6\u53ef\u80fd\u7531OS\u56de\u6536\u3002\u5206\u914d\u65b9 \u5f0f\u7c7b\u4f3c\u4e8e\u94fe\u8868\u3002<\/p>\n

3. \u6570\u636e\u6bb5（\u9759\u6001\u533a）：（static）\u5b58\u653e\u5168\u5c40\u53d8\u91cf\u3001\u9759\u6001\u6570\u636e\u3002\u7a0b\u5e8f\u7ed3\u675f\u540e\u7531\u7cfb\u7edf\u91ca\u653e\u3002<\/p>\n

4. \u4ee3\u7801\u6bb5：\u5b58\u653e\u51fd\u6570\u4f53（\u7c7b\u6210\u5458\u51fd\u6570\u548c\u5168\u5c40\u51fd\u6570）\u7684\u4e8c\u8fdb\u5236\u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u52a8\u6001\u5185\u5b58\u7ecf\u5178\u7b14\u8bd5\u9898\u5206\u67901.1 \u9898\u76ee1：void GetMemory(char* p)
\n{p (char*)malloc(100);
\n}
\nvoid Test(void)
\n{char* str NULL;GetMemory(str);strcpy(str, \\”hello world\\”);printf(str);
\n}\u8bf7\u95ee\u8fd0\u884cTest\u51fd\u6570\u4f1a\u6709\u4ec0\u4e48\u6837\u7684\u7ed3\u679c？\u7a0b\u5e8f\u4f1a\u53d1\u751f\u5d29\u6e83\u3002\u539f\u56e0\u662f：str \u521d\u59cb\u4e3a NULL，\u8c03\u7528 GetMe<\/p>\n","protected":false},"author":2,"featured_media":78190,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[8624,174,427],"topic":[],"class_list":["post-78191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-8624","tag-c","tag-427"],"yoast_head":"\n\u52a8\u6001\u5185\u5b58\u7ba1\u7406\uff08\u4e0b\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/78191.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u52a8\u6001\u5185\u5b58\u7ba1\u7406\uff08\u4e0b\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u4e00\u3001\u52a8\u6001\u5185\u5b58\u7ecf\u5178\u7b14\u8bd5\u9898\u5206\u67901.1 \u9898\u76ee1：void GetMemory(char* p) {p (char*)malloc(100); 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